MexigoreRegarding this picture, where do you think quantum computers lie and why?
I personally think we’re on the slope of enlightenment - quantum computing no longer attracts as much hype as it used to, but in the background, there’s a lot of interesting developments that genuinely might be very important.
I’d agree, but that slope will be a long and hard one. And the hype cycle may have many more peaks and troughs of disillusionment, from new breakthroughs, but the researchers will still make steady progress.
xavier666If true then when did QC have its “ChatGPT” moment?
I think AI is falling into disillusionment and Quantum Computers feel at least 10 years behind.
AI is falling into disillusionment for like the 10th time now. We just keep redefining what AI is to mean “whatever is slightly out of reach for modern computers”.
Hahaha, I kept saying this to myself while going through this thread. I mean there is a whole wiki page on the concept of AI winters because it’s such a common occurrence - en.m.wikipedia.org/wiki/AI_winter
I dunno if anyone except scientists and security people think about quantum computing at the moment.
Correct me if I’m wrong.
I’d say it’s still at the beginning of the curve. At the technology trigger phase. I don’t hear about it as much as I would expect
You’ve been able to buy a quantum computer for years, so I guess trough of disillusionment.
quantumzeitgeist.com/how-to-buy-a-quantum-compute…
You’re not going to hear a lot about them, but there are and have been many companies consistently working on improving the accuracy and power of quantum computers and still are.
regular computers were around for 40 years before people thought about them as personal machines, quantum computers are kind of in that zone roght mow, big room sized things that have a couple cubits.
but they are real and available, and the field is constantly in development
How To Buy A Quantum Computer. The 5-minute Easy Guide You Need To Understand The Quantum Computer Market
All jokes aside, yes, you can buy a quantum computer. Although it's probably not quite what you expect, you won't find one you can carry around. But there are publicly available quantum computers that you can buy. However, they typically only have a couple of qubits, which limits their utility beyond teaching, and the price is still way more than a super high-powered gaming machine equivalent.
Yeah as we have seen with LLMs, unless there is practical use for the average person, nobody cares.
Somewhere around 0,0 or 1,1
There are amazing possibilities in the theoretical space, but there hasn’t been enough of a breakthrough on how to practically make stable qubits on a scale to create widespread hype
henfredemarsOne problem with QC is that besting classical computers has been a moving target, improving exponentially for many years while QC was being researched. It’s going to be a long, slow climb up the slope of enlightenment as it reveals its potential.
Well, yes and no.
Quantum computers will likely never beat classical computing on classical algorithms, for exactly the reasons you stated, classical just has too much of a head start.
But there are certain problems with quantum algorithms that are exponentially faster than the classical algorithms. Quantum computers will be better on those problems very quickly, but we are still working on building reliable QCs. Also, we currently don’t know very many quantum algorithms with that degree of speedup, so as others have said there isn’t many use cases for QCs yet.
Kind of like cpus and gpus perform radically different depending on what’s fed into it.
I think this graph doesn’t have to move left to right, it can also move right to left. On several occasions it started to move up the “tech trigger” slope, but without any functional applications for the current technology the point slid back down to the left again.
I think the graph needs at least one more demarcated region. After “tech trigger” there needs to be “real world applications”. Without real world applications you can never progress past the tech trigger phase.
Real world applications is what comes to light at the „Slope of Enlightment“ If QC has some, the tech is at this point.
Pretty sure QC is down at 0,0 right now. They haven’t gotten it to work in the way it’s been envisioned yet. The theory is there, but until something is quantifiably working, there’s basically no hype behind it.
I’d say very slightly past that. Quantum computers do work right now, but it’s the same way the Wright brothers’ first plane worked: as proof of concept and research, but not better than existing tech for solving any problems.
And it’s not that they fail to meet expectations of the designers, as far as I know they do exactly what they are built to do as well as predicted with the tech we have. Just the press is expecting more.
The users of quantum computing is also such that if it does work, the 3 letter agencies will want to keep it to themselves and decrypt as much as possible before admitting it even exists.
Unfortunately for them, most of the progress is coming from the private sector (like most cutting edge tech these days) and those guys like to brag too much to let NSA come in and say “hey can we use that on the dl for about 3 years before you say anything”
Isn’t post-quantum cryptography already a thing? Probably not implemented in anything meaningful yet, but still.
Signal has it yes
There are plenty of dual-use technologies. That is, one’s that have both a private sector and military application. The big secret agencies rarely keep these things to themselves. The economic advantages of QC are too great to just sit on.
They work, but it’s expensive and POC stage. They’re mostly just not scaled to the level that we think we can take them to.
Domt fkrget about quantum tunneling past the activation barrier
You’ve been able to buy a quantum computer for years, so I guess trough of disillusionment.
although DARPA has them, so traveling up from the nadir of the trough of disillusionment.
quantumzeitgeist.com/how-to-buy-a-quantum-compute…
You’re not going to hear a lot about them, but there are and have been many companies consistently working on improving the accuracy and power of quantum computers and still are.
regular computers were around for 40 years before being successfully developed into personal machines with commercial utility, quantum computers are kind of in that zone roght mow, big room sized things that have a couple cubits.
but they are real and available, and the field is constantly in development
How To Buy A Quantum Computer. The 5-minute Easy Guide You Need To Understand The Quantum Computer Market
All jokes aside, yes, you can buy a quantum computer. Although it's probably not quite what you expect, you won't find one you can carry around. But there are publicly available quantum computers that you can buy. However, they typically only have a couple of qubits, which limits their utility beyond teaching, and the price is still way more than a super high-powered gaming machine equivalent.
You’ve been able to buy a quantum computer for years, so I guess trough of disillusionment.
although DARPA has them, so traveling up from the nadir of the trough of disillusionment.
quantumzeitgeist.com/how-to-buy-a-quantum-compute…
You’re not going to hear a lot about them, but there are and have been many companies consistently working on improving the accuracy and power of quantum computers and still are.
regular computers were around for 40 years before being successfully developed into personal machines with commercial utility, quantum computers are kind of in that zone roght mow, big room sized things that have a couple cubits.
but they are real and available, and the field is constantly in development
How To Buy A Quantum Computer. The 5-minute Easy Guide You Need To Understand The Quantum Computer Market
All jokes aside, yes, you can buy a quantum computer. Although it's probably not quite what you expect, you won't find one you can carry around. But there are publicly available quantum computers that you can buy. However, they typically only have a couple of qubits, which limits their utility beyond teaching, and the price is still way more than a super high-powered gaming machine equivalent.
It’s debatable if D-Wave is actually a quantum computer at least in the sense most people use the term. There’s a lot of unanswered questions still on exactly how to use and design a quantum computer and we’re not likely to get those answers until we can reliably produce and run systems with at least 8 qubits. Maybe DARPA and the military/CIA has such systems, but I don’t think anyone else does.
Quantum computers are still mostly theoretical. We have some of the building blocks of one, but there’s still a few critical pieces missing. Quantum computers are in about the same place as fusion reactors are. Theoretically possible but not currently producible in a form that’s useful without a few more technological breakthroughs.
If the computers are using functional qubits as processing power, then they’re a quantum computer.
I think IBM’s chip has a thousand cubits hang on-
IBMs quantum computer has 1121 cubits in their heron chip now in the quantum computer, they’re producing now and are working toward 100,000 qubits per processor in the next decade.
AsidonhopoFrom your article,
What everyone should know, however, is that quantum computing is not yet a practical reality. No company has developed a device that can beat classical supercomputers at anything more than obscure research problems that have no real use.
Until quantum computing has its Alan Turing moment it will remain a curiosity. The power of qubits needs to be yoked as a beast of burden for computation and actual useful problem solving the way that digital computing was with the Turing machine. It’s not a certainty that this will ever happen.
Sometimes I think that believers in quantum computing’s superiority to digital computing are as silly as those who think we’ve almost proven P=NP. But who knows, both might be valid.
DARPA dusagrees and the US has doubled billions of dollars of investment in the last few years testing available quantum computers.
ibm is increasing quantum processing power just like they did regular computers.
Declaring that quantum computers is not yet a practical reality despite them being real and functioning, progressing and in use is akin to dismissing the wright brothers after their first successful flight.
like if people doubted the wright brothers before they built and flew their plane?
understandable.
but doubting them after kitty hawk is popular willful ignorance, or an aversion to logical imagination.
It’s the same common perception about new technology until said tech becomes less-new and widely available, at which point everyone swears they saw it coming a mile away and it’s the only way things could have happened.
Electric cars is another great example, people have been moaning for 20 years that they are impractical and their batteries are difficult to manufacture and their capacity just isn’t up to snuff so they’ll never really take off like gasoline cars, and now everyone with any understanding of the auto industry has pretty much accepted the inevitability of EV dominance.
Okay, I was being somewhat flippant. I don’t discount there seems to be progress in some areas but slow and in low-visibility ways. I could even believe much more powerful quantum computers exist in state facilities around the world. Have they been shown to be useful though or there some bottleneck that prevents them from outcompeting digital computers?
An additional concern of mine is what they are useful for is in rapidly breaking vital digital algorithms like elliptical curve cryptography, and can’t be allowed in public hands for that reason. Someone elsewhere said there were computers with 1100 qubits, why is it taking so long to exploit these machines to do useful work? Or am I mistaken and there is evidence, I would love to see it.
Would a savvy investor put their money in quantum computing now, was the Wright Company a good buy when it first started? This actually has me on a deep dive about historical stock market graphs…
ooh good deep dive.
investment in quantum computing by the US government has doubled in less than 4 years, I know China is throwing huge amounts of money at it also, but you won’t see large public investment until commercially available products become widespread, which is not to say that you can’t invest in qcomputing if you want to.
let me know what you find with air travel investment 120 years ago, I’m be pretty interested.
that other comment you’re referencing include several quotes from darba after trying out eight of the commercially available quantum computers now.
The results are mixed, but it’s important to note that DARPA didn’t say quantum computing isn’t real or isn’t practical, they just aren’t ready to consistently tackle the problems. DARPA is putting them through, which is a lot like saying a 1995 desktop can’t run Witcher 3.
and for fun, that’s obviously the information DARPA has publicly shared, anything quantum computing could be positively applied to with significant efficacy would be a matter of national security at this point.
not as relevant as the actual results DARPA is releasing, but important to keep in mind that satellite phones were around '62 but weren’t commercially available for at least 30 years.
Three decades of practical development and use cases before that tech becomes mainstream.
Good points, I’m reevaluating my perspective on quantum computing.
From the article you posted, it says that “certain chemistry, quantum materials, and materials science applications” are suitable for quantum computing but that “accelerating incompressible computational fluid dynamics” aren’t suitable with current understanding of how the algorithms could work.
My takeaway as someone with a couple years of CS education from years ago is that the qcomputers are good at gradient descent/simulated annealing or something like that but that advantage disappears with more complex problems. Also that we’ll need a few more orders of magnitude qubits to make the output “interesting.” Still though, helpful to see that something worthwhile is stirring under all that research , I appreciate the insight!
for sure, every time I hear about a new test with quantum computers I think back to the last article detailing the next level quantum computing had been taken, which we’re mostly hardware benchmarks and not testing, now darpa is testing more than half a dozen limited-functioning quantum computers I’m all sorts of fields.
now i’m waiting for the next development.
looks like vanderbilt and morgan invested 1 million dollars in the wright brothers company 6 years after kitty hawk, which would still be very, very early days for investing in flight.
I saw on a website dedicated to the Wright brothers, that but I was curious if there was something recognizable as a stock price listing as a publicly traded company. Larger investors like that might jump in before smaller investors started approaching it.
I posted a question about it on the largest stocks related communities I could find on Lemmy, maybe someone has expertise in that kind of thing. I’ll turn it over to AskLemmy if nobody shows up on the smaller forum.
good idea, that right he interesting to find out
Approaching the point of disillusionment.
They started to work, but hardly anyone cares. They are still far from being good, or affordable.
Btw: What a quantum computer can reliably do these days, is tell you 21 is 3 x 7. And it takes hours and quite some traditional computing to do that.
https://en.wikipedia.org/wiki/Integer_factorization_records#Records_for_efforts_by_quantum_computers
We've progressed a bit further than that. But for anyone interested in actual applications for quantum computers... They'll have to wait. It's research at this point. We're making progress one step at a time. But so far no one has even demostrated we're able to scale those computers to a useful size.
So I'd say we're somewhere close to the origin of the axes. Or on a different graph for research that's still science fiction. Together with nuclear fusion power plants, thorium cars, space ships and hypothetical battery chemistry that'll make our electric cars go 5000 miles and not degrade over time.
That’s not entirely true. There are companies right now with prototypes solving real world problems.
RegalPotooIf you have a concrete example I’d love to hear it
Sandbox AQ is one I’ve heard about. Pretty sure they are at least at the prototype stage.
That certainly counts as hype. But I wonder if there's any independent information out there about these computers. All I can find is self-advertising and news about investors. I mean we occasionally do get these claims that someone proved quantum supremacy. But as far as I know the validity often isn't clear or the results aren't reproduced yet. And sadly I can't skim the papers since lots of them aren't open access.
And for research it doesn't matter if you need days to cool down the computer just for one calculation. Or if most results are wrong due to noise and you have to re-do every computation on a traditional computer to check which results are correct. But I'd expect it takes them years or decades from a protopype like that to something actually useful. And as of now we haven't even solved superconductivity or the temperatures or decoherence. So I'm always a bit careful with these claims frome some quantum startups.
Looks like they do! I’d only heard about them in passing, but here’s an article: www.mdpi.com/1424-8220/24/16/5402
Bedside Magnetocardiography with a Scalar Sensor Array
Decades of research have shown that magnetocardiography (MCG) has the potential to improve cardiac care decisions. However, sensor and system limitations have prevented its widespread adoption in clinical practice. We report an MCG system built around an array of scalar, optically pumped magnetometers (OPMs) that effectively rejects ambient magnetic interference without magnetic shielding. We successfully used this system, in conjunction with custom hardware and noise rejection algorithms, to record magneto-cardiograms and functional magnetic field maps from 30 volunteers in a regular downtown office environment. This demonstrates the technical feasibility of deploying our device architecture at the point-of-care, a key step in making MCG usable in real-world settings.
That article talks about a bedside magnetometer device, used to measure the heartbeat of a person. I can't find any reference to quantum computers 🙁
I appreciate the conversation, but it does seem like you’re dismissing everything to fit with your narrative. Quantum computing is absolutely a new and emerging field, I was just trying to showcase that it’s farther than 21 divided by 7.
From wikipedia, en.m.wikipedia.org/wiki/Magnetocardiography, MCGs are pretty much by definition a quantum sensor. The technical aspects of the paper linked goes in to how their device is different and why it does not require cryogenic cooling.
you're dismissing everything [...]
Not at all. On the contrary, I'd love to learn some more about it. The thing is, we're talking about something here (quantum computers) and you're saying they have one. And then you go on saying MCG is useful and they bought some SQUID sensors... Of course I'm dismissing that. Since it has nothing to do with the conversation we're having?! I don't even disagree. Quantum effects certainly exist. And I bet measuring small magnetic fields is super useful in many applications. But what's that do do with the question I asked?
Ah, I think I misunderstood the conversation, then. I apologize for that. I was considering quantum sensors and other quantum computer adjacent technologies, I suppose. Not just the classic idea of a quantum computer/showing quantum supremacy.
That's alright. I learned something anyways. Maybe I'm a bit overly cautios with these companies. I mean they even combine two of the buzzwords that attract investors... "AI" and "Quantum"... But I don't know much about the topic. Usually we have some classical signal processing available to handle sensor data. But AI can do things like imaging and finding patterns well. I can see how there might be some synergy between the two fields.
www.sandboxaq.com/solutions/aqnav
This is their only product on the market which has quantum in their product description. It apparently uses “quantum sensors” to provide location information. I don’t know how it works. I think they have made a hard shift in their strategy in the last 2 years by offering AI solutions instead.
Does these “companies” includes the one that were outed for just doing computation on plain old processors and claiming they had made huge breakthrough in quantum computing?
Not the one I was thinking about. Sandbox AQ is the one that came to mind.
What exactly is holding QC back right now? Does it require near room-temp superconductivity to become viable or is it just in research phase right now?
I remember that AI/ML was held back mainly because of compute power to price ratio.
There are a few different physical systems that people are trying to build quantum computers with. Superconducting loops are one of the most promising ones, because of a halfway decent decoherence rate. And yeah, superconducts needing near 0K temperature to operate is a problem. It’s just hard to scale up while everything needs to be so cold. Room-temp superconductivity would be a huge advantage.
But even then, the decoherence rates are still too high for any long quantum computation. Last I heard, the best qubits are maybe barely getting to good enough errors rates that quantum error correction would be possible - which is great, but ‘possible’ and ‘practical’ still have a significant gap between them.
So in short, basically everything about the hardware needs to be better; and its just very very hard. Probably too hard to ever achieve the dream of having arbitrary quantum computation. (But there is always the possibility of some big new idea that makes everything work better.)
Brownian MotionQuantum Computing is still climbing the slope from TT to the Peak of Inflated Expectations. There is still little to no major hype, as its still in “R&D/testing” it is slow, it is expensive (Very) limited due to all the surrounding tech required to make it work like cooling, containment etc…
Compare this to AI.
AI is at and heading down from the Peak towards the Trough of Disillusionment. It was easy (relatively) to implement, easy to evolve as how nVidia did, simply throw more silicon at it. The Hype was easy to generate because even while totally misinformed, media and other people out there thought they could easily sell it. Even though most of what they claimed was turd, it sounded amazing and a game changer even in the early stages, and businesses lapped it up. Now they are feeling the pain, and seeing that there are still major hurdles to get passed.
The kind of LLM that caused this hype with GPT3 is in R&D since the 60’s.
I belive we’re in the 70’s of Quantum Coputing. When It’ll be measured, it’d be just as easy and relatively cheep to produce and advance as AI today
QC is likely to remain the domain of liquid nitrogen-cooled machines for a long time to come, possibly forever. I can run a basic LLM on a Raspberry Pi–and I have–but it’s highly unlikely QC will ever be that easy.
considering that no one who isn’t involved in the creation of them is talking about quantum computing in regards to quarterly profits or posting about it on LinkedIn trying to score a lead, it may be as far left on the chart as possible.
AI is way different. It’s more like a series of hills where dystopias is pushing the boulder up to the peak, only to see another higher peak as the boulder rolls down the slope of disillusionment.
The thing is that quite a few things initially called AI have climbed that hype curve, rolled down into disillusionment, and quite a few have plateaued as increased productivity. Each time we realize that’s either not AI or only a step toward AI. We’ve gotten a lot of useful functionality but the actual progress seems to be mainly clarifying what intelligence is or is not
Quantum computers have already had its hype, so plateau of productivity. It’s just that the plateau is really low.