From quantum curiosity to quantum computers: the 2025 Nobel Prize for Physics
This year’s Nobel Prize for Physics went to John Clarke, Michel Devoret and John Martinis “for the discovery of macroscopic quantum mechanical tunnelling and energy quantization in an electric circuit”.
That circuit was a superconducting device called a Josephson junction and their work in the 1980s led to the development of some of today’s most promising technologies for quantum computers.
To chat about this year’s laureates, and the wide-reaching scientific and technological consequences of their work I am joined by Ilana Wisby – who is a quantum physicist, deep tech entrepreneur and former CEO of UK-based Oxford Quantum Circuits. We chat about the trio’s breakthrough and its influence on today’s quantum science and technology.
This podcast is supported by American Elements, the world’s leading manufacturer of engineered and advanced materials. The company’s ability to scale laboratory breakthroughs to industrial production has contributed to many of the most significant technological advancements since 1990 – including LED lighting, smartphones, and electric vehicles.
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1 00:00:07,759 --> 00:00:10,719 Hello, and welcome to the Physics World weekly 2 00:00:10,719 --> 00:00:12,740 podcast. I'm Hamish Johnston. 3 00:00:13,184 --> 00:00:15,184 In this episode, we're going to chat about 4 00:00:15,184 --> 00:00:16,885 the 2025 5 00:00:17,265 --> 00:00:18,804 Nobel Prize for Physics, 6 00:00:19,265 --> 00:00:21,125 which has been awarded to three 7 00:00:21,504 --> 00:00:24,244 pioneers in the field of superconducting 8 00:00:24,864 --> 00:00:26,004 quantum circuits. 9 00:00:26,649 --> 00:00:28,670 But first, I'd like to acknowledge 10 00:00:29,130 --> 00:00:31,550 the generous support of American 11 00:00:31,850 --> 00:00:32,350 Elements 12 00:00:32,810 --> 00:00:34,030 for this episode. 13 00:00:35,850 --> 00:00:36,909 American Elements, 14 00:00:37,689 --> 00:00:41,149 the world's manufacturer of engineered and advanced materials. 15 00:00:43,125 --> 00:00:44,184 American elements, 16 00:00:45,284 --> 00:00:46,024 now invent. 17 00:00:51,045 --> 00:00:53,465 On Tuesday morning, John Clark, 18 00:00:53,924 --> 00:00:55,225 Michelle Devoret, 19 00:00:55,960 --> 00:00:57,020 and John Martinez 20 00:00:57,479 --> 00:01:00,460 bagged this year's Nobel Prize for Physics 21 00:01:00,840 --> 00:01:01,739 for the discovery 22 00:01:02,119 --> 00:01:03,100 of macroscopic 23 00:01:03,799 --> 00:01:05,579 quantum mechanical tunneling 24 00:01:05,959 --> 00:01:07,420 and energy quantization 25 00:01:08,119 --> 00:01:09,579 in an electric circuit. 26 00:01:10,254 --> 00:01:12,034 That circuit was a superconducting 27 00:01:12,334 --> 00:01:14,994 device called a Josephson junction, 28 00:01:15,454 --> 00:01:18,015 and their work, which was done in the 29 00:01:18,015 --> 00:01:18,994 nineteen eighties, 30 00:01:19,295 --> 00:01:20,435 has led directly 31 00:01:20,814 --> 00:01:23,314 to a leading family of nascent 32 00:01:23,694 --> 00:01:24,834 quantum computers 33 00:01:25,299 --> 00:01:28,579 that are being developed by tech giants and 34 00:01:28,579 --> 00:01:29,799 startups alike. 35 00:01:30,659 --> 00:01:32,200 These use superconducting 36 00:01:32,659 --> 00:01:36,359 circuits as quantum bits, and their physical form, 37 00:01:36,659 --> 00:01:37,159 resembling 38 00:01:37,459 --> 00:01:38,200 a glittering 39 00:01:38,500 --> 00:01:39,719 copper chandelier, 40 00:01:40,355 --> 00:01:43,174 has become an icon of quantum computing. 41 00:01:44,275 --> 00:01:46,995 To chat about this year's laureates and the 42 00:01:46,995 --> 00:01:47,895 wide reaching 43 00:01:48,355 --> 00:01:49,814 scientific and technological 44 00:01:50,435 --> 00:01:52,055 consequences of their work, 45 00:01:52,435 --> 00:01:54,935 I'm joined by Ilana Whisby, 46 00:01:55,530 --> 00:01:57,230 who is a quantum physicist, 47 00:01:58,010 --> 00:01:59,310 deep tech entrepreneur, 48 00:01:59,849 --> 00:02:00,670 and former 49 00:02:01,129 --> 00:02:01,629 CEO 50 00:02:02,010 --> 00:02:02,989 of Oxford 51 00:02:03,290 --> 00:02:04,349 Quantum Circuits. 52 00:02:04,810 --> 00:02:05,709 Hi, Ilana. 53 00:02:06,010 --> 00:02:07,310 Welcome to the podcast. 54 00:02:08,215 --> 00:02:09,914 Hi. Thanks so much for having me. 55 00:02:10,375 --> 00:02:12,534 Yeah. Thanks for coming on, Alana. 56 00:02:12,854 --> 00:02:14,634 You know, when when we thought about 57 00:02:14,935 --> 00:02:16,854 how to cover this in the podcast, I 58 00:02:16,854 --> 00:02:17,914 was really keen 59 00:02:18,215 --> 00:02:19,354 on getting somebody, 60 00:02:20,055 --> 00:02:21,914 with a sort of industrial 61 00:02:22,215 --> 00:02:23,275 commercial background 62 00:02:23,740 --> 00:02:26,139 and a bit of experience with the sort 63 00:02:26,139 --> 00:02:27,439 of quantum technology 64 00:02:27,740 --> 00:02:31,259 that these, three laureates developed. Because I know 65 00:02:31,259 --> 00:02:33,180 it's, you know, it's it's it's had a 66 00:02:33,180 --> 00:02:34,319 very important 67 00:02:34,860 --> 00:02:35,360 implications 68 00:02:35,659 --> 00:02:38,620 in the, sort of, quantum computing industry. So 69 00:02:38,620 --> 00:02:39,555 it's really great, 70 00:02:40,275 --> 00:02:41,414 to have you on. 71 00:02:41,794 --> 00:02:44,534 And as someone who's worked with superconducting 72 00:02:45,314 --> 00:02:47,555 qubits, I'm guessing that you're very pleased with 73 00:02:47,555 --> 00:02:50,215 this Nobel Prize. You seemed very pleased yesterday 74 00:02:50,354 --> 00:02:52,614 when I first contacted you about it. 75 00:02:53,049 --> 00:02:55,289 Yeah. Absolutely. I mean, the whole the whole 76 00:02:55,289 --> 00:02:58,489 field, the whole ecosystem is obviously delighted. I 77 00:02:58,489 --> 00:03:00,509 can probably talk on behalf of them 78 00:03:00,810 --> 00:03:02,189 at that point in time. 79 00:03:02,729 --> 00:03:04,750 I mean, really because the prize recognises, 80 00:03:06,534 --> 00:03:09,014 the experiment, really, that was a foundation for 81 00:03:09,014 --> 00:03:09,514 turning 82 00:03:09,814 --> 00:03:11,675 a theory about atoms 83 00:03:12,375 --> 00:03:15,435 into the field we have today with, superconducting 84 00:03:15,814 --> 00:03:17,189 quantum circuits, which 85 00:03:17,510 --> 00:03:20,969 underpins quantum computing and and so, so many 86 00:03:21,510 --> 00:03:24,409 other things. So, yeah, we're certainly absolutely, absolutely 87 00:03:24,469 --> 00:03:25,530 delighted, especially 88 00:03:26,150 --> 00:03:26,650 considering, 89 00:03:27,189 --> 00:03:29,205 it's the international year of quantum. 90 00:03:30,085 --> 00:03:32,004 So I think the timing as well is 91 00:03:32,004 --> 00:03:32,905 is particularly, 92 00:03:33,444 --> 00:03:35,064 particularly poignant for us. 93 00:03:35,685 --> 00:03:38,004 That's right. Yeah. I it's we we you 94 00:03:38,004 --> 00:03:40,104 know, on Physics World, we do make predictions 95 00:03:40,165 --> 00:03:42,245 every year about who's going to win the 96 00:03:42,245 --> 00:03:43,685 the Nobel Prize. And, 97 00:03:44,330 --> 00:03:46,750 and this year, you know, I think possibly 98 00:03:46,810 --> 00:03:48,650 influenced by the fact that it is the 99 00:03:48,650 --> 00:03:50,909 International Year of Quantum Science and Technology. 100 00:03:51,849 --> 00:03:54,650 We did go for a quantum prize, but, 101 00:03:54,650 --> 00:03:56,490 of course, we got we we we were 102 00:03:56,490 --> 00:03:58,330 completely wrong. We we thought it was gonna 103 00:03:58,330 --> 00:03:59,069 be quantum 104 00:03:59,465 --> 00:04:01,004 algorithms, you know, the theory 105 00:04:01,305 --> 00:04:03,625 of quantum computing. And instead, of course, it 106 00:04:03,625 --> 00:04:04,925 was the exact opposite. 107 00:04:06,185 --> 00:04:08,344 It was the people who did the hard 108 00:04:08,344 --> 00:04:08,844 work, 109 00:04:09,465 --> 00:04:10,525 and and built, 110 00:04:11,385 --> 00:04:13,724 I suppose, the the some of the earliest, 111 00:04:14,389 --> 00:04:14,889 qubits. 112 00:04:15,590 --> 00:04:16,089 So 113 00:04:16,470 --> 00:04:19,029 can you explain how the work done in 114 00:04:19,029 --> 00:04:20,569 the eighties by Clark, 115 00:04:21,750 --> 00:04:22,250 Devore, 116 00:04:22,790 --> 00:04:23,689 and Martinez 117 00:04:24,310 --> 00:04:25,769 has led to the superconducting 118 00:04:26,470 --> 00:04:27,850 qubits and processors 119 00:04:28,584 --> 00:04:30,504 that we have today. So what did they 120 00:04:30,504 --> 00:04:32,985 do back then? And and, how did it 121 00:04:32,985 --> 00:04:33,784 lead to, 122 00:04:34,745 --> 00:04:36,604 the quantum computers of today? 123 00:04:36,985 --> 00:04:38,764 Yeah. I mean, I can I can certainly 124 00:04:38,985 --> 00:04:40,904 do my best to whiz you through a 125 00:04:40,904 --> 00:04:43,144 little bit of history, but also then, of 126 00:04:43,144 --> 00:04:45,629 course, the impact that it's had, in shaping 127 00:04:45,629 --> 00:04:48,029 today's industry as well as kind of fields? 128 00:04:48,029 --> 00:04:48,529 But 129 00:04:48,830 --> 00:04:50,830 I think maybe if I zoom out and 130 00:04:50,830 --> 00:04:52,290 do a bit of history first, 131 00:04:52,830 --> 00:04:55,230 but before I do that, that verdict upfront, 132 00:04:55,230 --> 00:04:56,264 what they actually did, 133 00:04:57,305 --> 00:05:00,525 between Clark, Taberae, and Martinez is prove effectively 134 00:05:00,585 --> 00:05:01,884 that a manmade 135 00:05:02,665 --> 00:05:03,805 electronic circuit, 136 00:05:04,824 --> 00:05:08,045 can behave as one quantum object. 137 00:05:08,585 --> 00:05:11,180 So that single result is really what has 138 00:05:11,180 --> 00:05:13,199 led us to be able to engineer, 139 00:05:14,220 --> 00:05:16,699 quantum behaviour on chips, which is obviously the 140 00:05:16,699 --> 00:05:17,839 field of superconducting 141 00:05:18,379 --> 00:05:19,360 quantum circuits, 142 00:05:20,379 --> 00:05:21,199 which underpins 143 00:05:21,544 --> 00:05:23,944 a huge amount of the quantum computing industry 144 00:05:23,944 --> 00:05:25,564 and and how it runs today. 145 00:05:26,745 --> 00:05:28,824 So we just take a a quick step 146 00:05:28,824 --> 00:05:31,144 back. But before the nineteen eighties, I think 147 00:05:31,144 --> 00:05:33,384 it's probably worth putting it a little bit 148 00:05:33,384 --> 00:05:35,165 into context of what we knew 149 00:05:35,699 --> 00:05:38,019 already, kind of the ecosystem that they were 150 00:05:38,019 --> 00:05:39,000 operating in. 151 00:05:40,100 --> 00:05:41,879 So if we start they had superconductivity. 152 00:05:42,259 --> 00:05:43,319 Right? That was understood, 153 00:05:43,779 --> 00:05:46,519 that you could cool materials and electrons 154 00:05:47,220 --> 00:05:49,404 pair up and flow in kind of Cooper 155 00:05:49,404 --> 00:05:51,324 pairs. So it was like ECS theory. This 156 00:05:51,324 --> 00:05:53,245 was kind of already a theory that was 157 00:05:53,245 --> 00:05:56,204 understood and actually earned the 1972 158 00:05:56,204 --> 00:05:57,185 Nobel Prize. 159 00:05:57,805 --> 00:05:59,254 There was also this other additional, 160 00:06:00,330 --> 00:06:01,930 concept that wasn't just a concept or a 161 00:06:01,930 --> 00:06:04,350 theory. It was also demonstrated in experimentation. 162 00:06:04,810 --> 00:06:05,550 And that was 163 00:06:05,930 --> 00:06:08,589 that those Cooper pairs can start tunnelling 164 00:06:08,889 --> 00:06:10,910 and you can use tunnelling as a tool. 165 00:06:11,050 --> 00:06:13,165 What that really means is that this kind 166 00:06:13,165 --> 00:06:16,444 of quantum mechanical effect allows particles to slip 167 00:06:16,444 --> 00:06:17,665 through barriers. 168 00:06:18,524 --> 00:06:20,785 And it was used as this measuring 169 00:06:21,324 --> 00:06:21,824 instrument. 170 00:06:23,165 --> 00:06:24,145 In semiconductors, 171 00:06:25,669 --> 00:06:28,469 it was shown in in devices there. There 172 00:06:28,469 --> 00:06:31,050 was also tunnel junctions for spectrometers 173 00:06:31,509 --> 00:06:33,909 in the superconducting kind of energy gap piece. 174 00:06:33,909 --> 00:06:35,930 And of course, Brian Josephson 175 00:06:36,629 --> 00:06:37,849 had first predicted 176 00:06:38,149 --> 00:06:39,930 that there was this superconducting 177 00:06:41,185 --> 00:06:41,685 insulator, 178 00:06:41,985 --> 00:06:42,485 superconducting 179 00:06:42,865 --> 00:06:44,805 kind of stack that could be created, 180 00:06:45,345 --> 00:06:47,925 which we call the the Josephson junction, 181 00:06:48,944 --> 00:06:51,524 in which pairs of electrons could tunnel 182 00:06:51,824 --> 00:06:52,324 together, 183 00:06:53,279 --> 00:06:55,919 in a a zero voltage super current. And, 184 00:06:55,919 --> 00:06:57,699 effectively, you can have, 185 00:06:58,319 --> 00:07:00,399 this kind of tunnelling effect. And that was 186 00:07:00,399 --> 00:07:00,899 demonstrated 187 00:07:01,360 --> 00:07:03,220 already within what we call SQUIDs, 188 00:07:04,079 --> 00:07:05,939 which were very, very sensitive, 189 00:07:06,879 --> 00:07:07,379 magnetometers. 190 00:07:08,235 --> 00:07:10,555 And again, that one was also recognized by 191 00:07:10,555 --> 00:07:11,594 the 1973 192 00:07:11,594 --> 00:07:14,154 Nobel prize. So I think all of this 193 00:07:14,154 --> 00:07:15,454 is really useful background 194 00:07:16,154 --> 00:07:16,654 context, 195 00:07:17,514 --> 00:07:19,454 as to the environment, 196 00:07:20,474 --> 00:07:22,720 that these three were kind of operating in. 197 00:07:22,720 --> 00:07:24,019 But the question that 198 00:07:24,399 --> 00:07:26,560 they really went out to answer was was 199 00:07:26,560 --> 00:07:28,579 a bigger question. It was like, can 200 00:07:29,120 --> 00:07:30,819 an electrical circuit itself 201 00:07:32,000 --> 00:07:32,500 show 202 00:07:32,879 --> 00:07:33,379 unmistakably 203 00:07:34,079 --> 00:07:35,060 quantum behavior 204 00:07:35,439 --> 00:07:36,579 in the same way 205 00:07:36,879 --> 00:07:37,785 that an atom does? 206 00:07:38,584 --> 00:07:40,985 And that question is super important because if 207 00:07:40,985 --> 00:07:42,985 the answer to that is yes, which effectively 208 00:07:42,985 --> 00:07:44,845 they were able to go out and prove, 209 00:07:45,305 --> 00:07:45,805 then 210 00:07:46,105 --> 00:07:48,524 that would basically mean you can create 211 00:07:48,904 --> 00:07:49,404 human 212 00:07:49,865 --> 00:07:50,365 artificial 213 00:07:50,904 --> 00:07:51,404 atoms 214 00:07:52,459 --> 00:07:54,079 mechanically engineered through 215 00:07:54,699 --> 00:07:55,839 electronic circuits. 216 00:07:57,660 --> 00:07:58,160 So. 217 00:07:58,939 --> 00:07:59,439 Really 218 00:07:59,979 --> 00:08:02,060 the team, when the three guys were over 219 00:08:02,060 --> 00:08:03,919 in Berkeley, they asked that question. 220 00:08:04,860 --> 00:08:05,360 And 221 00:08:06,145 --> 00:08:07,504 that question was really at that point in 222 00:08:07,504 --> 00:08:09,504 time, can it behave like a single quantum 223 00:08:09,504 --> 00:08:11,345 object? And what they did was they ran 224 00:08:11,345 --> 00:08:13,685 very tightly shielded, very kind of complex 225 00:08:13,985 --> 00:08:17,425 engineering to fully characterise this kind of experiment. 226 00:08:17,425 --> 00:08:18,865 And what they were able to prove is 227 00:08:18,865 --> 00:08:21,590 is two key facts that classical physics 228 00:08:22,210 --> 00:08:23,189 could not explain. 229 00:08:24,689 --> 00:08:27,810 The first was this concept of macroscopic quantum 230 00:08:27,810 --> 00:08:29,670 tunneling. So below 231 00:08:30,050 --> 00:08:32,049 specific temperature, they had this so that you 232 00:08:32,049 --> 00:08:33,834 can't put it into context. They had a 233 00:08:33,834 --> 00:08:34,334 superconducting 234 00:08:34,634 --> 00:08:35,134 circuit, 235 00:08:35,595 --> 00:08:36,495 probably within 236 00:08:36,875 --> 00:08:37,534 a a cryostat, 237 00:08:37,914 --> 00:08:39,355 a a very cool type, 238 00:08:39,754 --> 00:08:41,615 environment where you had your, 239 00:08:42,955 --> 00:08:45,375 your your metal, in a a superconducting, 240 00:08:46,875 --> 00:08:48,014 low TC manner. 241 00:08:49,210 --> 00:08:50,730 And what they were able to do was 242 00:08:50,730 --> 00:08:51,549 create an engineer, 243 00:08:52,009 --> 00:08:53,149 single trace in junction. 244 00:08:54,170 --> 00:08:56,009 And through that trace in junction, they were 245 00:08:56,009 --> 00:08:57,850 able to demonstrate the rate at which the 246 00:08:57,850 --> 00:08:58,350 device, 247 00:08:59,210 --> 00:09:02,429 leaves a non zero voltage state becomes independent 248 00:09:02,490 --> 00:09:02,955 on temperature. 249 00:09:03,754 --> 00:09:05,595 And what that was proving was that if 250 00:09:05,595 --> 00:09:07,754 it were an ordinary kind of thermal escape 251 00:09:07,754 --> 00:09:09,215 of this experiment they were doing, 252 00:09:10,075 --> 00:09:12,154 then colder wouldn't always been slower and it 253 00:09:12,154 --> 00:09:14,315 didn't. So this was the first point is 254 00:09:14,315 --> 00:09:16,715 that they were to prove this macroscopic quantum 255 00:09:16,715 --> 00:09:17,774 tunneling existed 256 00:09:18,190 --> 00:09:21,230 within that type of, of, of environment. The 257 00:09:21,230 --> 00:09:21,730 second 258 00:09:22,110 --> 00:09:24,910 was this discrete energy step in the circuit, 259 00:09:24,910 --> 00:09:26,930 which really underpins this nonlinearity 260 00:09:27,310 --> 00:09:29,310 for creating an artificial atom. So what they 261 00:09:29,310 --> 00:09:30,850 were able to do was apply 262 00:09:31,394 --> 00:09:33,654 these precise kind of microwave 263 00:09:34,035 --> 00:09:36,375 tones, I. E, specific microwave frequencies 264 00:09:37,555 --> 00:09:38,535 to this junction. 265 00:09:39,154 --> 00:09:41,154 And the device would would be able to 266 00:09:41,154 --> 00:09:44,035 identify, okay, this voltage change, this Cooper pair 267 00:09:44,035 --> 00:09:44,535 tunneling 268 00:09:45,190 --> 00:09:47,850 at specific frequencies at the right harmonics 269 00:09:48,230 --> 00:09:51,850 exactly where the quantum theory predicted it at. 270 00:09:51,990 --> 00:09:53,269 And they were, of course, able to do 271 00:09:53,269 --> 00:09:54,009 that reproducibly 272 00:09:54,629 --> 00:09:57,509 with, you know, significant rigor and show effectively 273 00:09:57,829 --> 00:09:59,509 sorry, it's hard to explain without going a 274 00:09:59,509 --> 00:10:00,164 little bit, 275 00:10:00,725 --> 00:10:02,485 kind of into the quantum physics, but the, 276 00:10:02,485 --> 00:10:04,725 the phase is a collective variable on this 277 00:10:04,725 --> 00:10:07,924 device, which contains billions of electrons has actually 278 00:10:07,924 --> 00:10:08,664 got quantum 279 00:10:09,445 --> 00:10:09,945 quantized 280 00:10:10,404 --> 00:10:11,464 energy and tunnels. 281 00:10:11,845 --> 00:10:13,704 So effectively proving out 282 00:10:14,230 --> 00:10:15,049 in experimentation, 283 00:10:16,070 --> 00:10:17,129 the quantum mechanics 284 00:10:17,590 --> 00:10:19,129 from atoms and ions 285 00:10:19,590 --> 00:10:20,090 to 286 00:10:20,629 --> 00:10:21,129 engineered 287 00:10:21,590 --> 00:10:24,490 superconducting circuits. And this is absolutely 288 00:10:25,029 --> 00:10:26,009 Nobel Prize 289 00:10:26,504 --> 00:10:29,165 worthy. Right? Seeing quantum behaviour 290 00:10:29,545 --> 00:10:31,245 demonstrated in a macroscopic 291 00:10:32,425 --> 00:10:33,565 manmade circuit, 292 00:10:34,105 --> 00:10:36,045 not just in kind of microscopic 293 00:10:36,504 --> 00:10:39,565 particles as we'd understood it before. Absolutely huge. 294 00:10:39,980 --> 00:10:42,860 The fact that there was complete kind of 295 00:10:42,860 --> 00:10:43,360 unambiguity 296 00:10:44,299 --> 00:10:45,440 in the evidence, 297 00:10:46,620 --> 00:10:49,740 both the temperature independent escape, as well as 298 00:10:49,740 --> 00:10:51,279 that microwave resolved 299 00:10:51,659 --> 00:10:54,319 step, they rule out classical explanations. 300 00:10:55,304 --> 00:10:57,705 And then of course, most importantly, from my 301 00:10:57,705 --> 00:10:59,725 perspective, the impact that that has, 302 00:11:00,105 --> 00:11:01,004 it unlocks 303 00:11:01,705 --> 00:11:03,884 a toolkit, a mindset that, 304 00:11:04,504 --> 00:11:07,225 Devray in particular was able to take on 305 00:11:07,225 --> 00:11:10,445 and really became the foundation for circuit QED, 306 00:11:11,279 --> 00:11:12,580 circuit quantum electrodynamics, 307 00:11:13,519 --> 00:11:16,419 which is really the foundations for modern superconducting 308 00:11:16,959 --> 00:11:17,459 qubits, 309 00:11:18,000 --> 00:11:19,459 quantum limited amplifiers. 310 00:11:20,639 --> 00:11:22,100 And a part which actually 311 00:11:22,720 --> 00:11:24,240 I really want to touch on as well 312 00:11:24,240 --> 00:11:24,740 is 313 00:11:25,424 --> 00:11:26,485 the human aspect. 314 00:11:26,865 --> 00:11:29,184 If we, if we look at kind of 315 00:11:29,184 --> 00:11:31,205 the, the, the way that these 316 00:11:31,745 --> 00:11:32,485 three individuals 317 00:11:32,865 --> 00:11:35,044 both ran their research group, 318 00:11:36,225 --> 00:11:39,125 across Berkeley, you know, where Devore came from, 319 00:11:39,184 --> 00:11:40,919 went across to Saclay, Martinez, 320 00:11:41,879 --> 00:11:44,120 Martina's, of course, going on to to Google 321 00:11:44,120 --> 00:11:44,620 and, 322 00:11:45,720 --> 00:11:48,279 and Clark's kind of Berkeley Lab as well. 323 00:11:48,279 --> 00:11:50,600 Like, if you look at the human impact, 324 00:11:50,600 --> 00:11:53,000 the training that they had in the fields 325 00:11:53,000 --> 00:11:55,720 that they then kind of coined, like, I've 326 00:11:55,720 --> 00:11:56,534 always thought of 327 00:11:57,254 --> 00:11:59,674 these people and this seminal paper, which 328 00:12:00,294 --> 00:12:02,315 when I was doing quantum 329 00:12:02,934 --> 00:12:03,434 physics, 330 00:12:03,894 --> 00:12:06,714 quantum mechanics before even going to the laboratory, 331 00:12:06,774 --> 00:12:08,694 these were papers I had read. And they're 332 00:12:08,694 --> 00:12:09,899 papers that pretty much 333 00:12:10,460 --> 00:12:12,860 every single person that operates in the space 334 00:12:12,860 --> 00:12:15,660 will have, have recognized, or, you know, maybe 335 00:12:15,660 --> 00:12:17,680 you've looked at Martinez's lectures, 336 00:12:18,220 --> 00:12:20,480 or Jeffrey's lecture notes. And, 337 00:12:20,860 --> 00:12:22,924 and I think it's, it's also this 338 00:12:23,625 --> 00:12:24,764 kind of human spawning 339 00:12:25,225 --> 00:12:26,365 as well as the technical 340 00:12:26,985 --> 00:12:27,485 spawning, 341 00:12:28,264 --> 00:12:30,044 that these almost like godfathers 342 00:12:30,424 --> 00:12:31,245 of the field, 343 00:12:33,144 --> 00:12:36,105 we're able to, to kind of catalyze with, 344 00:12:36,105 --> 00:12:39,379 with this work. So, Alana, the the superconducting 345 00:12:39,679 --> 00:12:42,879 qubits that, that we see today, and, you 346 00:12:42,879 --> 00:12:43,379 know, 347 00:12:43,840 --> 00:12:47,220 these these are used in in quantum processors 348 00:12:47,360 --> 00:12:50,315 that are that have been developed by huge 349 00:12:50,455 --> 00:12:53,355 companies and and small startups alike. 350 00:12:53,735 --> 00:12:54,955 Are are the superconducting 351 00:12:55,975 --> 00:12:56,475 devices 352 00:12:56,934 --> 00:12:58,075 today, are they 353 00:12:58,934 --> 00:13:00,554 very similar to what, 354 00:13:01,174 --> 00:13:02,315 the Nobel laureates 355 00:13:02,660 --> 00:13:05,220 developed in the mid eighties? Or are they 356 00:13:05,220 --> 00:13:06,600 essentially better versions 357 00:13:07,220 --> 00:13:09,300 of of what they developed? Or or has 358 00:13:09,300 --> 00:13:10,680 the technology evolved 359 00:13:11,059 --> 00:13:12,600 quite a bit since then? 360 00:13:13,300 --> 00:13:16,740 Yeah. Thankfully, of course, technology has evolved, quite 361 00:13:16,740 --> 00:13:17,800 a bit from then. 362 00:13:18,584 --> 00:13:20,825 But really this is this moment was kind 363 00:13:20,825 --> 00:13:22,044 of that that first 364 00:13:22,584 --> 00:13:25,065 experimental proof point, right, that you could start 365 00:13:25,065 --> 00:13:27,705 to manufacture or create some sort of manmade 366 00:13:27,705 --> 00:13:28,205 circuit, 367 00:13:29,384 --> 00:13:31,004 with this property that 368 00:13:31,384 --> 00:13:32,845 then turns into these, 369 00:13:33,225 --> 00:13:35,680 these cubits, right, where you've got your LC 370 00:13:35,680 --> 00:13:38,100 oscillator with your specific Joseph's junction, 371 00:13:38,800 --> 00:13:40,800 within now at first, when they first tried 372 00:13:40,800 --> 00:13:43,040 to create cubits and control it, the quantum 373 00:13:43,040 --> 00:13:43,940 information processing. 374 00:13:44,960 --> 00:13:47,200 My understanding is that, actually, they were looking 375 00:13:47,200 --> 00:13:49,040 at it from a different approach with with 376 00:13:49,040 --> 00:13:50,524 charge based mechanisms. 377 00:13:50,985 --> 00:13:53,304 And you were really limited in terms of 378 00:13:53,304 --> 00:13:55,225 what we call the coherence time, I. E. 379 00:13:55,225 --> 00:13:57,544 The the amount of storage time that quantum 380 00:13:57,544 --> 00:13:59,644 information could be held and manipulated, 381 00:14:00,184 --> 00:14:01,964 in that type of approach. But, 382 00:14:02,519 --> 00:14:05,420 actually what came from that was further development, 383 00:14:05,960 --> 00:14:07,580 into what we call the transmon. 384 00:14:08,120 --> 00:14:09,259 Now the transmon, 385 00:14:09,639 --> 00:14:12,360 there's another paper, which maybe that's one as 386 00:14:12,360 --> 00:14:14,460 well, which might be up for a future, 387 00:14:16,575 --> 00:14:17,075 quantum, 388 00:14:17,695 --> 00:14:18,175 future, 389 00:14:18,495 --> 00:14:21,215 Nobel prize, but this was really Deveray and 390 00:14:21,215 --> 00:14:23,055 his wider research group. So then you kind 391 00:14:23,055 --> 00:14:25,375 of move on to Deveray and Sholkov and 392 00:14:25,375 --> 00:14:29,075 Warrath and kind of circuit QED methods, 393 00:14:29,889 --> 00:14:32,070 which are all based off this Transmon 394 00:14:32,450 --> 00:14:34,230 type approach. But fundamentally, 395 00:14:34,610 --> 00:14:35,350 that Transmon 396 00:14:36,289 --> 00:14:37,509 includes, of course, 397 00:14:37,970 --> 00:14:40,210 all or is built upon all of the 398 00:14:40,210 --> 00:14:40,710 understanding, 399 00:14:42,370 --> 00:14:43,985 of of that original 400 00:14:44,764 --> 00:14:46,384 kind of circuit QED piece, 401 00:14:47,725 --> 00:14:48,205 but, 402 00:14:48,605 --> 00:14:50,684 is is engineered in a way that means 403 00:14:50,684 --> 00:14:52,205 that what we can do is start to 404 00:14:52,205 --> 00:14:54,924 optimise all of the different components within it. 405 00:14:55,164 --> 00:14:57,485 For example, you you couple it to a 406 00:14:57,485 --> 00:14:58,544 microwave resonator, 407 00:14:59,699 --> 00:15:01,220 so that you can start to increase their 408 00:15:01,220 --> 00:15:02,980 coherence time. You would cross some charge of 409 00:15:02,980 --> 00:15:04,519 phase. So there's 410 00:15:04,980 --> 00:15:07,139 fair amount of research that's gone on just 411 00:15:07,139 --> 00:15:08,339 to even get to the point of the 412 00:15:08,339 --> 00:15:10,759 transmon, but the transmon then, 413 00:15:11,539 --> 00:15:12,039 underpins, 414 00:15:12,524 --> 00:15:14,865 I would say, pretty much the entire superconducting 415 00:15:15,485 --> 00:15:17,105 quantum circuit space, 416 00:15:17,485 --> 00:15:20,144 today. So any quantum computer, you know, IBM, 417 00:15:20,764 --> 00:15:22,625 of course, Oxford Quantum Circuits, 418 00:15:23,324 --> 00:15:23,824 IQM, 419 00:15:24,125 --> 00:15:24,625 Rigetti, 420 00:15:25,245 --> 00:15:26,144 I think AWS. 421 00:15:27,440 --> 00:15:29,920 They're all based on this core Transmon type 422 00:15:29,920 --> 00:15:30,420 technology, 423 00:15:31,759 --> 00:15:35,379 which is from that core circuit QED toolbox 424 00:15:35,440 --> 00:15:37,540 that was was first demonstrated here. 425 00:15:38,559 --> 00:15:38,960 And, 426 00:15:40,235 --> 00:15:43,375 can we get on to, Oxford Quantum Circuits, 427 00:15:43,914 --> 00:15:44,894 Alana? You, 428 00:15:45,195 --> 00:15:45,695 cofounded 429 00:15:46,394 --> 00:15:49,934 that UK based company in 2017, 430 00:15:50,394 --> 00:15:51,855 and, it uses 431 00:15:52,259 --> 00:15:52,759 superconducting, 432 00:15:54,019 --> 00:15:56,019 circuits. Can you can you talk a bit 433 00:15:56,019 --> 00:15:57,480 about the challenges 434 00:15:57,860 --> 00:15:58,600 of taking 435 00:15:58,980 --> 00:15:59,480 superconducting 436 00:15:59,940 --> 00:16:01,399 circuits out of the lab, 437 00:16:02,019 --> 00:16:03,399 back in 2017 438 00:16:03,460 --> 00:16:03,960 and 439 00:16:04,355 --> 00:16:04,855 creating, 440 00:16:05,475 --> 00:16:05,975 practical 441 00:16:06,514 --> 00:16:08,214 commercial systems. Was it, 442 00:16:08,595 --> 00:16:10,454 I'm guessing there were a lot of challenges 443 00:16:10,514 --> 00:16:11,894 involved in that commercialization. 444 00:16:12,995 --> 00:16:14,834 Yeah. Of course. And and for anybody in 445 00:16:14,834 --> 00:16:16,409 the space, there there still are. 446 00:16:17,370 --> 00:16:20,490 So I joined OQC, Oxford Quantum Circuits as 447 00:16:20,490 --> 00:16:23,690 founding CEO alongside Doctor. Peter Leek, from the 448 00:16:23,690 --> 00:16:25,069 Oxford physics department. 449 00:16:25,850 --> 00:16:27,929 I think this is a really great example, 450 00:16:27,929 --> 00:16:30,565 right, of where you can have a core 451 00:16:30,565 --> 00:16:32,644 technology, a core piece of IP or an 452 00:16:32,644 --> 00:16:34,184 idea that sits within academia. 453 00:16:35,044 --> 00:16:36,485 But there's a really long way to go 454 00:16:36,485 --> 00:16:38,245 and to be able to turn, you know, 455 00:16:38,245 --> 00:16:41,445 an idea or a concept or, an early 456 00:16:41,445 --> 00:16:42,004 kind of, 457 00:16:43,570 --> 00:16:45,589 piece of science through into, 458 00:16:47,009 --> 00:16:49,169 a commercial system. Right? That's a long path 459 00:16:49,169 --> 00:16:50,149 and a long journey. 460 00:16:50,929 --> 00:16:53,009 If we specifically start just looking at the 461 00:16:53,009 --> 00:16:55,970 actual qubits themselves, like the approach we were 462 00:16:55,970 --> 00:16:58,355 able to take there was how can we 463 00:16:58,355 --> 00:17:00,674 kind of utilize that deep relationship with the 464 00:17:00,674 --> 00:17:01,174 university 465 00:17:01,955 --> 00:17:04,275 whilst it's the technology is still a kind 466 00:17:04,275 --> 00:17:05,335 of early technology 467 00:17:05,714 --> 00:17:06,214 readiness 468 00:17:06,835 --> 00:17:08,674 to both prove out the physics and build 469 00:17:08,674 --> 00:17:09,960 confidence in the physics. 470 00:17:10,519 --> 00:17:11,799 And then what I was able to do 471 00:17:11,799 --> 00:17:13,559 is the CEO is come in and go, 472 00:17:13,559 --> 00:17:15,880 right. Okay. How do we now turn this 473 00:17:15,880 --> 00:17:18,279 into an actual system? How do we de 474 00:17:18,279 --> 00:17:21,099 risk technology in university and build a stack? 475 00:17:21,399 --> 00:17:23,720 And that's a lot more than just kind 476 00:17:23,720 --> 00:17:25,659 of proving out a key bit. Right? That's 477 00:17:25,994 --> 00:17:26,494 optimising, 478 00:17:27,434 --> 00:17:27,934 reproducibly 479 00:17:28,555 --> 00:17:29,375 at scale, 480 00:17:29,755 --> 00:17:31,855 but also building the rest of a computing 481 00:17:32,075 --> 00:17:36,335 stack, which requires significant kind of multi interdisciplinary 482 00:17:37,515 --> 00:17:38,974 teams pulling from 483 00:17:39,569 --> 00:17:40,069 industry, 484 00:17:41,250 --> 00:17:42,390 across the world. 485 00:17:43,169 --> 00:17:43,669 And 486 00:17:44,049 --> 00:17:46,609 of course you have the qubit itself with 487 00:17:46,609 --> 00:17:47,429 these individual, 488 00:17:48,609 --> 00:17:51,509 transmons for oxo quantum circuits. That's the coaximon, 489 00:17:51,730 --> 00:17:54,305 which was the invention from Peter Leake in 490 00:17:54,305 --> 00:17:55,684 in the physics department. 491 00:17:56,305 --> 00:17:57,985 But, of course, you then also need to 492 00:17:57,985 --> 00:17:59,265 build the rest of the stacks or the 493 00:17:59,265 --> 00:18:01,985 control hardware, the control software. And one of 494 00:18:01,985 --> 00:18:04,225 the things that I was really passionate about 495 00:18:04,225 --> 00:18:06,144 is, like, making sure that we were putting 496 00:18:06,144 --> 00:18:09,289 the customer, right, the commercial mindset at 497 00:18:09,750 --> 00:18:11,509 the forefront of everything we were doing. I 498 00:18:11,509 --> 00:18:12,970 don't think it's worth or 499 00:18:13,509 --> 00:18:16,409 correct to build technology in isolation. So 500 00:18:16,869 --> 00:18:17,509 for us, 501 00:18:17,990 --> 00:18:19,750 one of the first key milestones we did 502 00:18:19,750 --> 00:18:21,589 was prove out a kind of end to 503 00:18:21,589 --> 00:18:22,605 end vertical slice 504 00:18:23,085 --> 00:18:24,924 with the first system, which was only four 505 00:18:24,924 --> 00:18:25,424 cubits. 506 00:18:26,125 --> 00:18:27,724 But we connected up to, 507 00:18:28,125 --> 00:18:29,964 a consumer, a customer that was running an 508 00:18:29,964 --> 00:18:30,464 algorithm. 509 00:18:31,085 --> 00:18:33,005 And at each point, we've always tried to 510 00:18:33,005 --> 00:18:35,325 keep the customer at the forefront of everything 511 00:18:35,325 --> 00:18:37,565 we were doing, and that meant providing them 512 00:18:37,565 --> 00:18:38,065 access. 513 00:18:38,389 --> 00:18:39,990 You know? And when you do that, you 514 00:18:39,990 --> 00:18:40,490 get, 515 00:18:41,750 --> 00:18:43,669 you get a deeper understanding, of course, of 516 00:18:43,669 --> 00:18:44,169 the 517 00:18:44,470 --> 00:18:47,029 the challenges, both from a technical but also 518 00:18:47,029 --> 00:18:47,529 from 519 00:18:47,829 --> 00:18:48,889 a systems integration 520 00:18:49,669 --> 00:18:50,169 perspective, 521 00:18:50,789 --> 00:18:52,089 for the for the consumer. 522 00:18:52,634 --> 00:18:54,154 And at the end of the day, the 523 00:18:54,154 --> 00:18:55,134 the kind of really, 524 00:18:55,914 --> 00:18:56,654 I guess, 525 00:18:57,595 --> 00:19:00,634 challenging thing for the quantum physicist think about 526 00:19:00,634 --> 00:19:03,595 is that ultimately the consumer doesn't care whether 527 00:19:03,595 --> 00:19:04,335 it's quantum 528 00:19:04,650 --> 00:19:06,090 or not. Like, we want to be able 529 00:19:06,090 --> 00:19:07,609 to solve their problems. So you need to 530 00:19:07,609 --> 00:19:08,730 be able to find a way to zoom 531 00:19:08,730 --> 00:19:09,230 out, 532 00:19:10,250 --> 00:19:12,490 as as well and really focus on the 533 00:19:12,490 --> 00:19:14,029 type of problems that they have, 534 00:19:14,410 --> 00:19:16,509 and really think about, you know, security. 535 00:19:16,894 --> 00:19:19,154 How does this integrate into their existing workflow? 536 00:19:19,615 --> 00:19:21,214 But at the same time, you've also got 537 00:19:21,214 --> 00:19:23,855 to build from the bottom up. And, you 538 00:19:23,855 --> 00:19:26,434 know, this is true for all quantum companies 539 00:19:26,494 --> 00:19:29,054 out there today is that the systems that 540 00:19:29,054 --> 00:19:29,954 that we have 541 00:19:30,509 --> 00:19:32,430 and the, the progress that we're making with 542 00:19:32,430 --> 00:19:35,150 the, the actual, I'd say performance of the, 543 00:19:35,150 --> 00:19:37,710 the quantum bits, be it through superconducting circuits 544 00:19:37,710 --> 00:19:39,970 or NV centers or silicon or ion traps. 545 00:19:40,590 --> 00:19:42,990 No, it's, it's really improving rapidly, but we 546 00:19:42,990 --> 00:19:44,349 need to be able to do this at 547 00:19:44,349 --> 00:19:45,970 tens of thousands, if not millions 548 00:19:46,325 --> 00:19:46,984 of cubits 549 00:19:47,765 --> 00:19:48,265 reproducibly 550 00:19:48,644 --> 00:19:51,224 with high quality, with super low latency, 551 00:19:52,565 --> 00:19:54,345 in a manner that is seamless, 552 00:19:54,964 --> 00:19:57,224 and kind of integrated into 553 00:19:57,605 --> 00:20:00,184 the existing industry. And that's really challenging. 554 00:20:01,240 --> 00:20:03,319 I think it's worth touching on, if you 555 00:20:03,319 --> 00:20:06,220 don't mind, like, the superconducting circuits in particular 556 00:20:06,279 --> 00:20:07,099 here, because 557 00:20:07,960 --> 00:20:10,200 where you have Josephson junctions and this kind 558 00:20:10,200 --> 00:20:11,880 of core piece, still one of the biggest 559 00:20:11,880 --> 00:20:14,440 challenges is that that's the core component that's 560 00:20:14,440 --> 00:20:15,339 really challenging 561 00:20:16,724 --> 00:20:18,505 to reproduce at scale, 562 00:20:19,045 --> 00:20:20,505 with with high yield. 563 00:20:21,285 --> 00:20:22,825 And it's not something that 564 00:20:23,444 --> 00:20:25,384 exists in the existing semiconductor 565 00:20:26,164 --> 00:20:26,984 supply chain, 566 00:20:27,845 --> 00:20:30,005 as a kind of methodology. So that is 567 00:20:30,005 --> 00:20:31,144 one of the biggest challenges, 568 00:20:32,490 --> 00:20:33,869 for any of the superconducting 569 00:20:34,410 --> 00:20:35,710 circuit players today. 570 00:20:36,570 --> 00:20:40,009 And you you mentioned, that superconducting circuits, they're 571 00:20:40,009 --> 00:20:41,850 they're not the only game in town when 572 00:20:41,850 --> 00:20:44,970 it comes to creating qubits and and and 573 00:20:44,970 --> 00:20:46,029 quantum processors. 574 00:20:47,345 --> 00:20:47,744 Are we 575 00:20:48,545 --> 00:20:50,404 do we are we still in the mindset 576 00:20:50,464 --> 00:20:52,164 that there is going to be one 577 00:20:52,704 --> 00:20:55,525 type of qubit technology, be it superconducting 578 00:20:55,904 --> 00:20:58,785 or something else, that's going to win out? 579 00:20:58,785 --> 00:20:59,279 Or 580 00:21:01,000 --> 00:21:02,720 could we see a future with with a 581 00:21:02,720 --> 00:21:04,900 number of different types of qubits 582 00:21:05,680 --> 00:21:08,000 integrated together? So, you know, you might have 583 00:21:08,000 --> 00:21:08,500 superconducting 584 00:21:09,039 --> 00:21:10,259 qubits, you might have 585 00:21:10,559 --> 00:21:14,500 optical NV qubits and trapped ions all 586 00:21:14,815 --> 00:21:17,955 in one system or connected on a quantum 587 00:21:18,255 --> 00:21:18,755 internet. 588 00:21:19,695 --> 00:21:20,195 What's 589 00:21:20,815 --> 00:21:21,535 the view, 590 00:21:22,174 --> 00:21:24,035 in the industry today about 591 00:21:24,335 --> 00:21:26,355 the, you know, the race for the ultimate 592 00:21:26,414 --> 00:21:26,914 qubit? 593 00:21:28,009 --> 00:21:28,649 Well, I think, 594 00:21:29,289 --> 00:21:31,210 maybe my view is different from the view 595 00:21:31,210 --> 00:21:32,970 across, across the industry today. So if you 596 00:21:32,970 --> 00:21:34,490 go and speak to any of these individual 597 00:21:34,490 --> 00:21:36,750 companies, of course, they'll tell you rightly so, 598 00:21:37,289 --> 00:21:40,429 why their single technology will, will, will win. 599 00:21:41,384 --> 00:21:42,984 But for me, I mean, I did my 600 00:21:42,984 --> 00:21:45,785 PhD originally in hybrid quantum systems. So I 601 00:21:45,785 --> 00:21:48,605 was doing superconducting circuits coupled with, 602 00:21:49,865 --> 00:21:50,845 spin ensembles, 603 00:21:51,545 --> 00:21:54,445 and got to work with, different spin mechanisms 604 00:21:54,585 --> 00:21:55,244 as well. 605 00:21:55,829 --> 00:21:56,329 And 606 00:21:56,950 --> 00:21:58,569 if you look at the progression 607 00:21:58,950 --> 00:22:00,890 of, say, classical compute, 608 00:22:01,509 --> 00:22:03,049 I honestly think it would be 609 00:22:03,589 --> 00:22:07,130 naive to think that any one single technology, 610 00:22:08,244 --> 00:22:09,544 or kind of underlying, 611 00:22:10,804 --> 00:22:12,585 quantum basis is going to be 612 00:22:12,884 --> 00:22:14,424 utilised for absolutely everything. 613 00:22:15,365 --> 00:22:16,884 So I don't think there's a winner take 614 00:22:16,884 --> 00:22:19,845 all, technology. I do think it's worth still 615 00:22:19,845 --> 00:22:22,345 investing in multiple different technologies. 616 00:22:23,720 --> 00:22:25,320 And I do see a world in which 617 00:22:25,320 --> 00:22:26,220 we've got 618 00:22:26,600 --> 00:22:28,700 different underlying types of qubits, 619 00:22:29,320 --> 00:22:31,580 optimised for different applications, 620 00:22:32,279 --> 00:22:34,600 and that they probably will be hybrid quantum 621 00:22:34,600 --> 00:22:35,820 computers or networks 622 00:22:36,664 --> 00:22:37,884 in in some form, 623 00:22:38,664 --> 00:22:40,904 in in the future. So I'm a firm 624 00:22:40,904 --> 00:22:43,384 believer in in hybrid quantum systems to that 625 00:22:43,384 --> 00:22:43,884 moment. 626 00:22:45,065 --> 00:22:46,904 And I think today you've got, 627 00:22:47,464 --> 00:22:49,865 you've got a fairly good overview, don't you, 628 00:22:49,865 --> 00:22:50,365 of 629 00:22:50,960 --> 00:22:53,140 of of of the quantum industry 630 00:22:54,160 --> 00:22:57,519 and, you know, who who's investing what, and, 631 00:22:57,519 --> 00:23:00,580 you know, what technologies are are hot, and 632 00:23:00,640 --> 00:23:02,980 and maybe what technologies are fading. 633 00:23:03,279 --> 00:23:06,099 How would you characterize the industry today? 634 00:23:06,585 --> 00:23:07,244 Is it, 635 00:23:07,784 --> 00:23:09,944 has it has it matured quite a bit 636 00:23:09,944 --> 00:23:11,565 from, say, 2017 637 00:23:11,784 --> 00:23:14,765 when you when you first kicked off with, 638 00:23:15,065 --> 00:23:18,105 Oxford Quantum Circuits? You know, how how has 639 00:23:18,105 --> 00:23:19,224 it changed, and, 640 00:23:19,784 --> 00:23:22,639 and where where is it heading? Yeah. For 641 00:23:22,639 --> 00:23:24,579 sure. I mean, look, when I was 642 00:23:24,960 --> 00:23:25,460 first 643 00:23:26,000 --> 00:23:26,500 fundraising 644 00:23:27,039 --> 00:23:29,599 and building the first quantum computers over at 645 00:23:29,599 --> 00:23:31,839 OQC, like, honestly, I should have run a 646 00:23:31,839 --> 00:23:33,220 consultancy just educating, 647 00:23:33,919 --> 00:23:35,139 consumers, investors. 648 00:23:36,245 --> 00:23:37,845 I probably would have made more money and 649 00:23:37,845 --> 00:23:38,585 more progress, 650 00:23:39,605 --> 00:23:41,684 because it was a really, really nascent space. 651 00:23:41,684 --> 00:23:43,365 Right. Consumers didn't know, 652 00:23:44,164 --> 00:23:46,245 what what the technology could could do yet. 653 00:23:46,245 --> 00:23:48,184 So there's a lot of education there. 654 00:23:49,259 --> 00:23:52,320 The investors were really still developing their thesis 655 00:23:52,380 --> 00:23:55,100 on where they would invest and understanding the 656 00:23:55,100 --> 00:23:55,600 fundamentals, 657 00:23:56,860 --> 00:23:58,320 of, of what it would take. 658 00:23:58,940 --> 00:24:00,160 Fast forward to 659 00:24:00,474 --> 00:24:00,974 today, 660 00:24:01,674 --> 00:24:02,894 that has significantly 661 00:24:03,434 --> 00:24:03,934 shifted, 662 00:24:04,315 --> 00:24:06,974 as a landscape, both from a consumer perspective 663 00:24:07,194 --> 00:24:11,595 where the early adopters, particularly across finance, across, 664 00:24:11,994 --> 00:24:13,674 materials discovery, across, 665 00:24:14,075 --> 00:24:14,575 simulation, 666 00:24:16,019 --> 00:24:17,880 of underlying kind of molecular 667 00:24:18,259 --> 00:24:18,759 dynamics, 668 00:24:19,380 --> 00:24:22,019 and and so much more across both and 669 00:24:22,019 --> 00:24:24,740 I broaden this now to to computing, sensing, 670 00:24:24,740 --> 00:24:25,480 and communications. 671 00:24:26,740 --> 00:24:29,220 The industry has has matured rapidly. Now there's 672 00:24:29,220 --> 00:24:29,684 still 673 00:24:30,245 --> 00:24:31,924 a long way to go, of course. We 674 00:24:31,924 --> 00:24:33,765 still need to make sure that we are 675 00:24:33,765 --> 00:24:34,265 building 676 00:24:34,725 --> 00:24:37,365 quantum computers that will eventually be fault tolerant 677 00:24:37,365 --> 00:24:38,985 in capability. We are still 678 00:24:39,525 --> 00:24:40,745 on the cusp of, 679 00:24:41,525 --> 00:24:43,529 kind of coming out of the the NISC, 680 00:24:43,930 --> 00:24:46,349 noisy intermediary scale quantum era 681 00:24:46,809 --> 00:24:47,309 where, 682 00:24:47,849 --> 00:24:49,450 we are pushing the boundaries of what can 683 00:24:49,450 --> 00:24:50,109 be simulated. 684 00:24:50,570 --> 00:24:52,809 But most importantly, I think you've got really 685 00:24:52,809 --> 00:24:53,710 smart end users, 686 00:24:54,650 --> 00:24:56,349 and you've also got really 687 00:24:56,650 --> 00:24:57,150 rapid 688 00:24:57,514 --> 00:24:58,654 technological development 689 00:24:59,434 --> 00:25:01,134 across lots of different underlying 690 00:25:01,674 --> 00:25:03,534 quantum technologies proving 691 00:25:04,315 --> 00:25:06,815 that we are seeing significant, 692 00:25:07,835 --> 00:25:08,335 traction, 693 00:25:10,075 --> 00:25:12,419 which which gives us confidence that we will 694 00:25:12,419 --> 00:25:12,919 meet, 695 00:25:13,299 --> 00:25:16,099 and eventually surpass kind of that quantum advantage 696 00:25:16,099 --> 00:25:18,179 point likely in the next year. If I'm 697 00:25:18,980 --> 00:25:21,539 maybe maybe that's my prediction. We'll see whether 698 00:25:21,539 --> 00:25:22,200 we're true, 699 00:25:22,659 --> 00:25:24,419 true next year or not. But I'd say, 700 00:25:24,419 --> 00:25:26,919 you know, characterizing overall, we've gone from 701 00:25:27,295 --> 00:25:28,835 we've gone from early demos, 702 00:25:30,494 --> 00:25:31,795 to a lot more maturity. 703 00:25:32,575 --> 00:25:34,575 We've got full systems. We've got a really 704 00:25:34,575 --> 00:25:35,075 competitive 705 00:25:35,934 --> 00:25:36,434 ecosystem. 706 00:25:37,134 --> 00:25:39,615 We've got a maturing market, and we've got 707 00:25:39,615 --> 00:25:40,515 a much more 708 00:25:41,400 --> 00:25:42,440 smart, ready, capable, 709 00:25:44,039 --> 00:25:44,539 investor, 710 00:25:45,400 --> 00:25:47,000 market as well. I think even the amount 711 00:25:47,000 --> 00:25:49,000 of investment that's gone in the last '24 712 00:25:49,000 --> 00:25:52,299 to '20 last year, like, 2024 to 2025, 713 00:25:53,160 --> 00:25:54,255 I think it's, like, doubled. 714 00:25:54,654 --> 00:25:56,734 So we're seeing a lot of money, a 715 00:25:56,734 --> 00:25:57,555 lot of talent, 716 00:25:57,934 --> 00:25:59,154 and a lot of expertise, 717 00:25:59,855 --> 00:26:02,194 in the space, which is is really, truly, 718 00:26:02,654 --> 00:26:03,154 exciting. 719 00:26:04,174 --> 00:26:05,555 And what's your role, 720 00:26:05,934 --> 00:26:07,295 Elana? What are you up to at the 721 00:26:07,295 --> 00:26:09,350 moment? Are you are you are you on 722 00:26:09,350 --> 00:26:10,950 the business side of things, or are you 723 00:26:10,950 --> 00:26:11,450 back 724 00:26:11,830 --> 00:26:13,269 in in the lab, or is it a 725 00:26:13,269 --> 00:26:15,109 bit of both for you? That is a 726 00:26:15,109 --> 00:26:17,269 a great question. Thankfully for everybody, I'm not 727 00:26:17,269 --> 00:26:18,090 in a laboratory 728 00:26:19,029 --> 00:26:19,529 because 729 00:26:20,549 --> 00:26:23,025 as much as I absolutely loved being an 730 00:26:23,025 --> 00:26:23,525 experimentalist, 731 00:26:24,144 --> 00:26:26,085 I was definitely much better as a CEO 732 00:26:26,345 --> 00:26:26,845 than, 733 00:26:28,545 --> 00:26:31,125 doing the actual kind of, fabrication, 734 00:26:32,305 --> 00:26:34,465 my myself. So we will we all play 735 00:26:34,465 --> 00:26:35,285 into our strengths. 736 00:26:35,789 --> 00:26:37,490 But, yeah, right now I'm actually exploring 737 00:26:37,870 --> 00:26:40,110 a few stealth projects. Of course, it's where 738 00:26:40,110 --> 00:26:42,930 deep tech and quantum primarily meets leadership. 739 00:26:44,029 --> 00:26:46,190 So there's a number of teams in quantum 740 00:26:46,190 --> 00:26:47,410 across different technologies, 741 00:26:48,404 --> 00:26:50,164 where I'm able to help them in their 742 00:26:50,164 --> 00:26:52,424 earlier stages. There's still plenty of room, 743 00:26:53,205 --> 00:26:54,424 in in the market, 744 00:26:54,965 --> 00:26:57,285 to set up with their vision, their mission, 745 00:26:57,285 --> 00:26:58,025 their values. 746 00:26:58,884 --> 00:27:01,809 And I'm really enjoying kind of helping support 747 00:27:01,950 --> 00:27:02,690 the ecosystem 748 00:27:02,990 --> 00:27:05,309 to up and grow in that way, both 749 00:27:05,549 --> 00:27:07,009 I mean, I'm an entrepreneur. 750 00:27:07,630 --> 00:27:08,529 I am founding, 751 00:27:09,150 --> 00:27:09,970 for sure. 752 00:27:11,069 --> 00:27:13,009 But also I'm I'm really enjoying 753 00:27:13,390 --> 00:27:16,450 advising early stage teams and getting to know, 754 00:27:17,684 --> 00:27:20,505 yeah, different different teams, different setups from 755 00:27:20,884 --> 00:27:22,585 around around the world. 756 00:27:23,525 --> 00:27:25,525 And if I can kinda give a little 757 00:27:25,525 --> 00:27:26,505 a little teaser, 758 00:27:27,845 --> 00:27:28,964 I know if you know, 759 00:27:29,444 --> 00:27:29,944 Rumi's 760 00:27:30,325 --> 00:27:32,450 quote. It's is like out beyond the ideas 761 00:27:32,450 --> 00:27:34,610 of wrongdoing and right doing. There is a 762 00:27:34,610 --> 00:27:35,110 field 763 00:27:35,570 --> 00:27:36,710 and I'll be there. 764 00:27:39,730 --> 00:27:40,470 And finally, 765 00:27:41,009 --> 00:27:43,170 Elana, I'd like to sort of co opt 766 00:27:43,170 --> 00:27:46,005 you in our sort of ongoing project of 767 00:27:46,005 --> 00:27:47,944 trying to predict the next, 768 00:27:48,565 --> 00:27:51,284 Nobel Prize for Physics, something that here on 769 00:27:51,284 --> 00:27:54,244 Physics World, we well, we're we're luck we 770 00:27:54,244 --> 00:27:56,085 we luck out occasionally, I think. We get 771 00:27:56,085 --> 00:27:58,804 it right occasionally, but normally we get it 772 00:27:58,804 --> 00:27:59,304 wrong. 773 00:28:00,690 --> 00:28:03,190 Is there any research that's being done today 774 00:28:03,329 --> 00:28:04,630 in quantum physics 775 00:28:05,009 --> 00:28:08,049 that you find really exciting and you think 776 00:28:08,049 --> 00:28:10,150 could merit a future 777 00:28:10,529 --> 00:28:11,505 Nobel Prize? 778 00:28:11,825 --> 00:28:14,565 So get that quantum crystal ball out. 779 00:28:16,144 --> 00:28:18,305 Yeah. I mean, look, there's so much exciting 780 00:28:18,305 --> 00:28:18,785 work, 781 00:28:19,424 --> 00:28:19,924 happening. 782 00:28:20,384 --> 00:28:21,204 I think realistically, 783 00:28:22,384 --> 00:28:25,285 anybody who makes a reliable error corrected 784 00:28:26,190 --> 00:28:28,589 quantum computer, like the first to that, like, 785 00:28:28,589 --> 00:28:31,470 absolutely deserves absolutely deserves one because that would 786 00:28:31,470 --> 00:28:32,529 be undeniable 787 00:28:33,470 --> 00:28:33,970 value. 788 00:28:34,829 --> 00:28:36,109 I think what you said at the beginning 789 00:28:36,109 --> 00:28:39,149 about algorithms is also really important, particularly where 790 00:28:39,149 --> 00:28:41,009 you're looking at new and novel, 791 00:28:42,144 --> 00:28:44,244 error correction, error detection type schemes. 792 00:28:44,945 --> 00:28:47,184 There's a huge amount of innovation there. And 793 00:28:47,184 --> 00:28:50,224 what's kind of interesting actually is the almost 794 00:28:50,224 --> 00:28:52,164 quantum inspired impact on classical, 795 00:28:53,505 --> 00:28:56,029 improvements to algorithm development there as well. But 796 00:28:56,029 --> 00:28:57,649 for me, I mean, it's all about impact. 797 00:28:57,710 --> 00:28:59,789 So if I would love to see a 798 00:28:59,789 --> 00:29:01,710 Nobel Prize then go across to, like, if 799 00:29:01,710 --> 00:29:03,089 somebody has been able to 800 00:29:03,630 --> 00:29:04,130 make 801 00:29:04,589 --> 00:29:05,409 a a discovery, 802 00:29:06,429 --> 00:29:06,929 which 803 00:29:07,710 --> 00:29:09,470 I think for me particularly, it was like 804 00:29:09,470 --> 00:29:10,690 purpose built molecular 805 00:29:11,234 --> 00:29:12,134 qubit type, 806 00:29:14,595 --> 00:29:16,775 sorry, molecular simulation type 807 00:29:17,234 --> 00:29:19,335 manners, then I think that that would, 808 00:29:20,595 --> 00:29:21,575 100% 809 00:29:22,035 --> 00:29:22,535 deserve 810 00:29:24,240 --> 00:29:26,240 a kind of Nobel prize. So quantum enabled 811 00:29:26,240 --> 00:29:27,380 discovery in the real 812 00:29:27,759 --> 00:29:30,160 world. Sorry. It's not more more specific than 813 00:29:30,160 --> 00:29:32,240 than that. No. That's that. I mean, that 814 00:29:32,240 --> 00:29:34,640 goes back to, you know, recently we've been 815 00:29:34,640 --> 00:29:37,005 talking about the purpose of the Nobel Prize 816 00:29:37,005 --> 00:29:38,924 here. Yeah. And we've looked at some sort 817 00:29:38,924 --> 00:29:41,404 of crazy prizes from the past that, you 818 00:29:41,404 --> 00:29:43,644 know, to to modernize. You think, you know, 819 00:29:43,644 --> 00:29:45,424 what are they on about? A prize for 820 00:29:45,565 --> 00:29:46,465 color photography. 821 00:29:47,244 --> 00:29:48,845 But, you know, it does say I think 822 00:29:48,845 --> 00:29:51,105 it does explicitly say invention, 823 00:29:52,450 --> 00:29:54,609 when it comes to Nobel Prize. And yeah, 824 00:29:54,609 --> 00:29:56,130 that that I mean that is an an 825 00:29:56,130 --> 00:29:59,169 interesting idea that, you know, when when, you 826 00:29:59,169 --> 00:30:00,710 know, when somebody invents 827 00:30:01,329 --> 00:30:02,149 an extraordinarily 828 00:30:02,849 --> 00:30:03,349 reliable 829 00:30:04,105 --> 00:30:06,845 quantum computer that, you know, achieves amazing 830 00:30:07,384 --> 00:30:07,884 advantage, 831 00:30:08,265 --> 00:30:09,565 that's, you know, 832 00:30:10,105 --> 00:30:10,924 that would definitely 833 00:30:11,464 --> 00:30:12,444 deserve a prize. 834 00:30:13,464 --> 00:30:14,765 Yeah. Prize to the whole industry. 835 00:30:16,345 --> 00:30:18,505 Well, that's the problem, isn't it? You know, 836 00:30:18,505 --> 00:30:18,825 it's, 837 00:30:19,500 --> 00:30:21,420 I mean, particularly if if that sort of 838 00:30:21,420 --> 00:30:22,240 thing is 839 00:30:22,700 --> 00:30:23,680 is developed 840 00:30:24,059 --> 00:30:26,940 at a big company. Mhmm. I mean, if 841 00:30:26,940 --> 00:30:29,279 it's developed at a small company like Oxford 842 00:30:29,579 --> 00:30:32,565 Quantum Circus, maybe, you know, maybe the Nobel 843 00:30:32,565 --> 00:30:35,304 committee would committee would be able to identify 844 00:30:35,444 --> 00:30:36,184 three people. 845 00:30:36,565 --> 00:30:36,884 But, 846 00:30:37,444 --> 00:30:39,125 I'm sure she would be super happy with 847 00:30:39,125 --> 00:30:40,265 that. Peter and Brad. 848 00:30:41,765 --> 00:30:43,224 That's where I put my money. 849 00:30:43,845 --> 00:30:45,444 Okay. Well, that's yeah. Well well well well 850 00:30:45,444 --> 00:30:46,804 well, we'll put them on our list, 851 00:30:47,450 --> 00:30:49,609 for next year. For sure. They have actually, 852 00:30:49,849 --> 00:30:51,849 had some really good results last year with 853 00:30:51,849 --> 00:30:53,930 a a new type of the Echoaxpond device, 854 00:30:54,170 --> 00:30:55,069 as well called 855 00:30:55,369 --> 00:30:56,809 well, I I'm not gonna talk to it, 856 00:30:56,809 --> 00:30:58,650 but but some people should should also look 857 00:30:58,650 --> 00:30:59,230 it up. 858 00:30:59,529 --> 00:31:02,009 Oh, that's great. Well, thanks thanks, Alana. Thanks 859 00:31:02,009 --> 00:31:05,044 so much for, for coming on, the podcast 860 00:31:05,265 --> 00:31:07,664 and, sort of giving us a flavor, you 861 00:31:07,664 --> 00:31:09,044 know, both about the physics, 862 00:31:09,424 --> 00:31:10,325 but also, 863 00:31:10,865 --> 00:31:12,484 you know, how that research has 864 00:31:12,785 --> 00:31:13,904 essentially spawned, 865 00:31:14,865 --> 00:31:16,484 an exciting new industry. 866 00:31:16,890 --> 00:31:18,650 Thanks for coming on. Thank you so much. 867 00:31:18,650 --> 00:31:19,710 Thank you for the time. 868 00:31:27,130 --> 00:31:30,509 That was Ilana Whisby, who's a quantum physicist, 869 00:31:30,970 --> 00:31:32,285 deep tech entrepreneur, 870 00:31:32,744 --> 00:31:34,365 and former CEO 871 00:31:34,744 --> 00:31:36,845 of Oxford Quantum Circuits. 872 00:31:37,305 --> 00:31:39,325 There's much more about this year's 873 00:31:39,705 --> 00:31:41,244 Nobel Prize for Physics 874 00:31:41,545 --> 00:31:43,244 on the Physics World website. 875 00:31:44,120 --> 00:31:46,200 I'm afraid that's all the time we have 876 00:31:46,200 --> 00:31:47,500 for this week's podcast. 877 00:31:47,799 --> 00:31:48,779 I'd like to thank 878 00:31:49,080 --> 00:31:52,059 American Elements for their generous support 879 00:31:52,360 --> 00:31:53,259 of this episode. 880 00:31:54,039 --> 00:31:57,720 Also, thanks to Ilana Whisby for joining me 881 00:31:57,720 --> 00:31:58,220 today. 882 00:31:58,664 --> 00:32:01,164 And as always, thank you to our producer, 883 00:32:01,625 --> 00:32:02,605 Fred Isles. 884 00:32:03,305 --> 00:32:05,625 We'll be back again next week when we 885 00:32:05,625 --> 00:32:07,005 chat about the effect 886 00:32:07,625 --> 00:32:08,205 of microgravity 887 00:32:08,904 --> 00:32:10,765 on the eyes of astronauts 888 00:32:11,305 --> 00:32:13,565 and how they can protect their vision 889 00:32:13,930 --> 00:32:14,750 in space. 890 00:32:15,130 --> 00:32:16,109 See you then. 891 00:32:18,490 --> 00:32:19,549 American Elements, 892 00:32:20,250 --> 00:32:23,789 the world's manufacturer of engineered and advanced materials. 893 00:32:25,690 --> 00:32:26,565 American Elements, 894 00:32:27,684 --> 00:32:28,504 now invent.