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Google gets an error-corrected quantum bit to be stable for an hour (arstechnica.com)

submitted 2 weeks ago by misk@sopuli.xyz to c/technology@lemmy.world

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[–] icerunner_origin@startrek.website 50 points 2 weeks 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 2 weeks 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 2 weeks 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 2 weeks 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 2 weeks ago

At least a week, probably more

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[–] mattgolsen@lemmy.ml 15 points 2 weeks ago

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

[–] prole@lemmy.blahaj.zone 14 points 2 weeks ago

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

[–] humanspiral@lemmy.ca 11 points 2 weeks 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 2 weeks ago* (last edited 2 weeks ago) (1 children)

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

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[–] obbeel@lemmy.eco.br 10 points 2 weeks 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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