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Google Quantum AI

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Re: Google Quantum AI

#61

Post by adrianN »

fragmede wrote: post #60
fooker wrote: post #15

The fact this prize exists is admitting that no one has figured out a use for quantum computers. I have heard this mentioned several times in the last decade or so : "The only thing a quantum computer definitively does better than a classical computer is simulating a quantum computer." Whether this capability is useful is up in the air. Note that in practice, classical computers are going to be better at factoring nu…

"better". There currently isn't a practical way to brute force factor a 4k rsa key with classical computing. doesn't shor's algorithm on a quantum computer make that feasible? that would be a big driver for quantum computing though maybe my understanding is off.

It is still open whether we can build quantum computers with sufficiently low noise to run Shor‘s algorithm.

Re: Google Quantum AI

#62

Post by sgt101 »

H8crilA wrote: post #55

Quantum AI running self driving cars in the blockchain cloud, social VR controlled. Experience our agile experience powered with renewable big data. Gamifying the digital transformation of tomorrow!

Green and diverse. You forgot green and diverse. Also youth.

Re: Google Quantum AI

#63

Post by These335 »

ssss11 wrote: post #56
H8crilA wrote: post #55

Quantum AI running self driving cars in the blockchain cloud, social VR controlled. Experience our agile experience powered with renewable big data. Gamifying the digital transformation of tomorrow!

Don’t forget the tracking and ads!

Of course, how can you possibly raise awareness without an ad campaign!

Re: Google Quantum AI

#64

Post by [deleted] »

tux3 wrote: post #57
H8crilA wrote: post #55

Quantum AI running self driving cars in the blockchain cloud, social VR controlled. Experience our agile experience powered with renewable big data. Gamifying the digital transformation of tomorrow!

Okay team, when can we supercharge this?

[deleted]

Re: Google Quantum AI

#65

Post by eru »

fooker wrote: post #15

The fact this prize exists is admitting that no one has figured out a use for quantum computers. I have heard this mentioned several times in the last decade or so : "The only thing a quantum computer definitively does better than a classical computer is simulating a quantum computer." Whether this capability is useful is up in the air. Note that in practice, classical computers are going to be better at factoring nu…

> I have heard this mentioned several times in the last decade or so : "The only thing a quantum computer definitively does better than a classical computer is simulating a quantum computer."

And, hopefully, other quantum systems in general!

I can see that helping with material science. That can have huge multiplier effects on the rest of the economy.

But I agree with you, that other serious applications of quantum computers seem to be thin on the ground.

Re: Google Quantum AI

#66

Post by eru »

throwaway63467 wrote: post #50
fooker wrote: post #15

The fact this prize exists is admitting that no one has figured out a use for quantum computers. I have heard this mentioned several times in the last decade or so : "The only thing a quantum computer definitively does better than a classical computer is simulating a quantum computer." Whether this capability is useful is up in the air. Note that in practice, classical computers are going to be better at factoring nu…

The big one is simulation of quantum systems, I don’t get how that’s not enough by itself? Classical computers will never be able to simulate quantum systems efficiently so we need quantum computers for that. In general achieving arbitrary precision control of quantum states is something that will open avenues in many areas like sensing as well, so just from that angle alone a working quantum computer would open a ne…

> In general achieving arbitrary precision control of quantum states is something that will open avenues in many areas like sensing as well, [...]

And developing new materials.

Re: Google Quantum AI

#67

Post by eru »

tgsovlerkhgsel wrote: post #26
fooker wrote: post #15

The fact this prize exists is admitting that no one has figured out a use for quantum computers. I have heard this mentioned several times in the last decade or so : "The only thing a quantum computer definitively does better than a classical computer is simulating a quantum computer." Whether this capability is useful is up in the air. Note that in practice, classical computers are going to be better at factoring nu…

Wouldn't the D-Wave kinda-but-not-really quantum computer that came out a decade ago be ideal for AI? Annealing sounds like exactly the kind of problem that needs to be solved for ML training?

Well, but to be useful, it would need to be better at this annealing than a classical computer that just uses good old (pseudo) random numbers.

Re: Google Quantum AI

#68

Post by eru »

fooker wrote: post #48
DiogenesKynikos wrote: post #46

Earlier quoted context omitted.

From Feynman's 1982 talk on quantum computing: "[N]ature isn't classical, dammit, and if you want to make a simulation of nature, you'd better make it quantum mechanical, and by golly it's a wonderful problem, because it doesn't look so easy." 0. https://s2.smu.edu/~mitch/class/5395/papers/feynman-quantum-...

You can simulate quantum mechanics with classical computers pretty well, as long as you stick to the copenhagen interpretation.

Huh? Your simulation doesn't care about your interpretation. All interpretations of quantum mechanics make the same predictions.

Re: Google Quantum AI

#69

Post by eru »

DiogenesKynikos wrote: post #53
fooker wrote: post #48

Earlier quoted context omitted.

You can simulate quantum mechanics with classical computers pretty well, as long as you stick to the copenhagen interpretation.

Feynman's lecture explains why classical computers are terrible at simulating quantum systems. The basic problem is that the number of states grows exponentially with the size of the system. You very quickly have to start making approximations, and it takes an enormous amount of classical computing power and memory to handle even relatively small systems.

Yes, you have to make approximations and deal with (estimates of) errors.

However, quantum computers also have to deal with noise and errors. So far, that's not very different.

(If we manage to build error-correcting quantum computers, that might change.)

Re: Google Quantum AI

#70

Post by eru »

nextworddev wrote: post #7
seydor wrote: post #4

Since they are doing buzzwords salad, they could go for Google Quantum Blockchain AI VR

Think this was launched to support some L8 promo

Yes, almost reads like classic promotion driven engineering.

(Or Promotion Oriented Programming.)

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