this post was submitted on 10 Dec 2024
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[–] mattgolsen@lemmy.ml 15 points 6 days ago

Maybe they can use the same techniques for keeping their product management and feature roadmap for more than an hour.

[–] vane@lemmy.world 1 points 5 days ago

Which hour ? If they create real quantum computer they can start identifying person that creates reality for all of us, assuming reality is broadcasted by collective mind, I doubt they can do it right now and I am sure the moment they start that person will log out from internet. Good bye then.

[–] icerunner_origin@startrek.website 50 points 1 week ago (3 children)

About how far does this leave us from a usable quantum processor? How far from all current cryptographic algorithms being junk?

[–] frezik@midwest.social 70 points 1 week ago (1 children)

The latest versions of TLS already have support post-quantum crypto, so no, it's not all of them. For the ones that are vulnerable, we're way, way far off from that. It may not even be possible to have enough qbits to break those at all.

Things like simulating medicines, folding proteins, and logistics are much closer, very useful, and more likely to be practical in the medium term.

[–] anomnom@sh.itjust.works 15 points 1 week ago (1 children)

Is there gov money in folding proteins though? I assume there’s a lot of 3 letter agencies what want decryption with a lot more funding.

[–] frezik@midwest.social 23 points 1 week ago (2 children)

There's plenty of publicly funded research for that, yes.

Three letter agencies also want to protect their own nation's secrets. They have as much interest in breaking it as they do protecting against it.

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[–] jewbacca117@lemmy.world 12 points 1 week ago

At least a week, probably more

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[–] prole@lemmy.blahaj.zone 14 points 1 week ago

Just in time for the fall of American democracy. What could possibly go wrong.

[–] humanspiral@lemmy.ca 10 points 1 week ago (1 children)

108 qubits, but error correction duty for some of them?

What size RSA key can it factor "instantly"?

[–] embed_me@programming.dev 8 points 1 week ago* (last edited 1 week ago) (1 children)

Currently none, I think it's allegedly 2000 qbits to break RSA

[–] humanspiral@lemmy.ca 1 points 6 days ago

afaik, without a need for error correction a quantum computer with 256 bits could break an old 256 bit RSA key. RSA keys are made by taking 2 (x-1 bit) primes and multiplying them together. It is relatively simple algorithms to factor numbers that size on both classsical and quantum computers, However, the larger the number/bits, the more billions of billions of years it takes a classical computer to factor it. The limit for a quantum computer is how many "practical qubits" it has. OP's article did not answer this, and so far no quantum computer has been able to solve factoring a number any faster than your phone can in under a half second.

[–] obbeel@lemmy.eco.br 10 points 1 week ago

Seeing quantum computers work will be like seeing mathemagics at work, doing it all behind the scenes. Physically (for the small ones) it looks the same, but abstractly it can perform all kinds of deep mathematics.

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