D-Wave Founder's New Startup Combines AI, Robots, and Monkeys in Exo-Suits
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It's hard to think of a reason to refuse to publicly prove that your quantum computer is actually working if it really is, if it isn't it makes a lot of sense of course.
Concerning the purchases of Google and the US government: These are probably more like research grants for D-Wave, as the buyers expect that at some time there might come a working quantum computer from D-Wave, and buying a prototype (even a faulty one) puts them in a good position to be the first to actually get a working version, while helping the company to stay afloat. By the way, Google invested 200 million USD in a different quantum computing technology endeavour led by a UC Santa Barbara professor, which would make little sense if they already had a working quantum computer.
The value of D-Wave as a company is not only defined by their ability to build a working quantum computer though, as there could be significant value in the patent portfolio they built / acquired and in their expertise in building and assembling superconducting chips and systems, which are both highly non-trivial tasks.
Their way of communicating with the public is of course highly misleading, which is why many people in the scientific community have very little respect for them, as this is viewed as highly unethical and harmful behavior in science (but not necessarily in the business world).
[0] http://web.physics.ucsb.edu/~martinisgroup/publications.shtm... [1] https://research.googleblog.com/2016/06/quantum-annealing-wi...
The quantum annealing example from the Google research blog seems to use normal quantum gates to simulate the nearest-neighbor interactions in a spin chain. The nature article is currently down but it seems they use "Trotterization" to simulate the spin chain using one- and two-qubits gates.
And I didn't touch on your earlier (erroneous) comment on the scientific community's perception of D-Wave, but I think it needs to be said that in actual professional circles the research they're performing isn't met with as much derision as they seem to garner in these more causally informed settings. It's hyped and a difficult subject to understand, so that's fair, but I suggest really informing yourself if you're going to go out there and make the claims you're making.
[0] http://research.google.com/pubs/pub44292.html [1] https://aqccreg2016.eventfarm.com/events/index/7fff5387-0000... http://1qbit.com/insights-inside-googles-annual-adiabatic-qu... [2] (Another article reviewing QA with Martinis and team) http://arxiv.org/abs/1512.02206
Again, their digital adiabatic quantum computing relies on a gate-based quantum processor, which provides a universal set of qubits gates and thus can in principle simulate any Hamiltonian, quantum annealing is just an algorithm that runs on it.
And I don't want to be overly negative, but the perception of D-Wave in "more professional" circles was not very enthusiastic in my experience, which to a large extent is also D-Waves fault.
Yes it is.
Lots of pure research goes nowhere. It's not like Geordie is defrauding the old and disabled. He's working with really really really smart people with lots of money.
Honestly, we need more of this and less of SnapChat startups.
Because there is no reliable way to fund it. Said another way, the time horizon for repayment is too long and too risky for traditional, non-corporate, non-public investing.
Lets assume you have a breakthrough with research, now you have to make a product to sell. Which means you need to likely build a new market, or even in the best case of an existing market change the team composition to fund product development.
Those are all risks that Banks and Venture Money (except in very rare cases) aren't willing to take.
What's harmful (IMHO) is making spectacular claims (look we have a working quantum computer!) and then not back them up by evidence. It is of course okay to sell your product aggressively as a startup, and sometimes to oversell it as well (fake it until you can make it), but I really have my doubts that D-Wave can "make it" in the near future, as there are just so many difficult problems to solve for which we don't even have a viabe approach yet (e.g building large scale qubit coupling schemes), and trust me most quantum computing research groups have people that are at least as smart and dedicated as the people working at D-Wave.
The other high profile guys I'm assuming you mean are Google and IBM. It would be interesting to know how d-wave "quantum computers" have actually made any kind of dent in their respective companies other than pure marketing hype so that they can say they have "quantum computers".
And if it is a flop, well, the marginal cost is pretty minor. When I was at MIT we bought all sorts of crazy things some of which turned out to be useful in unexpected ways once you actually had the equipment in your hands.
A good example of this was the EmDrive which really seemed like a scam to me but might have a there there. I wouldn't have believed it at all except that NASA, a seemingly independent organization where this is concerned, saw enough that it's apparently worth looking further. If it had been the 100% scam I assumed (and that's still not clear) I'd still be OK with the money spent.
At the moment I still don't believe D-Wave and dinnertime discussions with friends at Google have not caused me to change my opinion.
D-wave isn't selling a "universal" quantum computer, but the platform they are and have continued to deliver has shown real, tangible progress with respect to quantum tunneling (even though their coverage has been typically questionable, the best layman's explanation of their most recent results happens to be from Ars [0]). No we're not getting a "universal" quantum computer anytime soon and no they're never going to be accessible to average consumers (so remain skeptical of anyone who says otherwise) but those claiming D-Wave is a scam/con are absurd.
[0] http://arstechnica.com/science/2016/02/is-d-waves-quantum-pr...
However, they really want the publicity from calling it a quantum computer so they continue to do so.
Please bear in mind that Google as well as NASA have bought D-Wave computers. Whether the effect is real or not, they do not exactly transfer money to scammers, and are not easy, unsophisticated "marks" (targets of scammers.)
"Hey Google, it's your cousin!" is not how these sales take place. Use of a word like scam is inappropriate, especially given that sales have been made, and the ordered equipment has been delivered and is being used. (By people who run Google and who send things to space.)
Please be a bit more judicious in your phrasing.
The comments I'm seeing as response I agree don't seem to be conducive to an actual discussion so I'll rephrase but the point about the intelligence and infallible decision making abilities of the large organization being used as counterclaims do not really add up. Extraordinary claims require extraordinary proof is the usual bar for claims that go above and beyond current state of the art and science. D-wave has consistently failed in that regard. I find their approach unscientific and unethical for the kinds of claims they are making for whatever technology they have sold to whatever organizations. In the long run no one wins when such tactics are used.
Unfortunately I think you're outside of the edit window though. the phrasing you just used (in your second, longer paragraph) is fine to me! It should have been your original phrasing (both IMO and by HN guidelines.)
Thanks for following up.
Aaronson is currently back in the skeptical camp after a brief stint of "cautious enthusiasm" in 2012. Umesh Vazirani, Aaronson's PhD advisor and the grandfather of quantum computing, has been largely dismissive of D-Wave and doesn't believe their computers will be capable of much even if they are truly quantum.
The technology is apparently impressive enough that Google, NASA and Lockheed Martin have partnered with D-Wave to test its capabilities, but to date it has not done anything revolutionary. I'm sure they have done something, but it's not clear what trade secrets they have can be separated from marketing, and their public work has been reproduced on classical computers.
There have also been a number of articles in Nature Physics, Science and elsewhere by different authors going back and forth on points 1 and 2 above. The current consensus is that D-Wave is not creating true quantum computers; but they have developed classical, pseudo-quantum computers with legitimate entanglement implemented, and which do not currently offer any real quantum speedup or improvement over classical computers.
That said, I mostly follow quantum cryptography, so I haven't read this research in a while. I am personally happy that D-Wave exists and is trying to push forward the field - I think comparisons to Theranos are uncharitable. But I am skeptical of their real advancements.
Edited to clarify after reviewing the research again.
Which is also a field full of bullshit and nonsensical claims, and it still has to prove that it provides a solution for any real problem.
It might not be mature enough yet for widespread adoption, and it doesn't revolutionize all parts of a cryprosystem, but it is definitely progress in the narrower problems of key distribution and perfect forward secrecy for one-time pads.
Unless I'm misunderstanding you and what you mean is that the field has many people opportunistically using the term for marketing things that are not really quantum cryptography; if that's the case, I agree with you.
If you used that with the meaning "we don't know how to do anything useful with it, but it is worth looking because there may be some use", I would grant you this point. But:
> In fact, it has already been experimentally implemented (Los Alamos, UCambridge, UGeneva, etc).
No. The existing protocol for quantum key distribution is insecure bullshit.
And I don't see how quantum key distribution solves any problem. It's kinda circular - it requires an existing authenticated channel to work, which needs math-based crypto. At the same time the whole field is built on the claim that they're needed because they don't trust math-based crypto.
I'm not sure. The best minds I've talked to in high-assurance security don't believe it. One, Clive Robinson on Schneier's blog, predicted we'd see classical attacks on it. Something like that happened. I pointed out there would still be software, endpoints, interception, subversion, etc for bypass whereas the tech itself was little understood versus effects of regular electronics. Tried and true beats novel and new if it's high-security I always say.
No, these devices are not trustworthy or even necessary that I can tell. High-assurance key exchange is a solved problem if the organization is the simpler, hierarchical designs likely to use QKD. Many solutions available with the most reliable being a courier and key-handling hardware you can trust that only has part of the secret + another transmitted over various medium with it all using several layers of symmetric to work (eg my polymorphic schemes). All on dedicated, low-TCB devices.
I don't know what QKD costs today but I bet it's still cheaper to courier the pre-shared keys and use tamper-resistant hardware. Do you have numbers on it in terms of amount of keys negotiated over time and at what cost for hardware w/ HA setup?
I down-voted this. I have only a layman's understanding but from what I have read particularly #2 is demonstratively false, D-Wave has not achieved any improvements over classical computers for anything (including it's very own domain problem, which Alex Selby's classical algorithm outperforms D-Wave on). [0][1]
[0] http://www.scottaaronson.com/blog/?p=2555#comment-974407
My main point was that acknowledged experts have gone back and forth on this and there have been conflicting publications about D-Wave's computers. Now that I review the research again, it looks like it's been experimentally shown to have legitimate entanglement implemented in the computers, but the consensus is indeed that there is no quantum speed up or improvement or classical computers.
Thanks for the reply though, I've edited the original comment.
[0] http://www.dwavesys.com/media-coverage/techrepublic-quantum-...
Except not, because constant time speedup isn't interesting, 1000x classical computers will get you the same effect probably for less $ than d-wave. The entire point is that a genuine quantum computer should achieve an asymptotic speed-up not a constant factor one, which no one really cares about.
As someone who has actually worked in the research divisions of NASA and Lockheed, I wouldn't assign this form of social proof any value. There is absolutely nothing to infer from fact that NASA and Lockheed bought prototypes. I don't have personal experience with Google, but it is not unlikely that the same effects are at work.
[1] https://www.technologyreview.com/s/544276/google-says-it-has..., "Google Says It Has Proved Its Controversial Quantum Computer Really Works"
[2] https://research.googleblog.com/2015/12/when-can-quantum-ann..., "Quantum annealing significantly outperforms its classical counterpart, simulated annealing. It is more than 10^8 times faster than simulated annealing running on a single core".
The way their system seems to work is that you have to transform your problem set into a specific D-Wave function that will be topologically graphed into the D-Wave chipset. From there is finds the global minimum immediately. The challenge is really in having a problem that fits this type of transformation and doing it in a way that it's actually valuable. So it's quite a bit of work just to do the transform and we couldn't see an easy way to take some of our general problems and turn them into the graphs needed to work.
In theory their stock functions seem easy to implement but when you investigate further it's a pretty narrow set of problems that fit.
Maybe it's a bit off topic, but I'd like to put here fiction sources (which I know) that explore this kind of setup:
1) A Cognitive Discontinuity story by Andrej Karpathy (2015): http://karpathy.github.io/2015/11/14/ai/
2) Sleep Dealer movie (2008): https://www.rottentomatoes.com/m/sleep_dealer/
Why would someone who is supposedly at the forefront of this highly innovative field throw away years of experience and start again from scratch in a comparatively much simpler field.
This doesn't inspire much confidence in D-Wave.
So the big issue is: what is the state of the art in tele-operated robots ? And what's missing for it to become a thing ?
edit: I missed the comment below regarding the designation "universal" quantum computer. I guess that was the crux of the skeptic argument?
http://spectrum.ieee.org/automaton/robotics/robotics-hardwar...