The mind boggling speed of a quantum computer

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Gordy7

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#296319 7-Jun-2022 22:56

A snip from Newscientist:

A quantum computer that encodes information in pulses of light has solved a task in 36 microseconds that would take the best supercomputer at least 9000 years to complete.

Read more: https://www.newscientist.com/article/2322807-advanced-quantum-computer-made-available-to-the-public-for-first-time/#ixzz7VWOepeRt

Gordy

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neb

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#2923788 8-Jun-2022 05:33

A quantum computer that encodes information in pulses of light has solved a task in 36 microseconds that would take the best supercomputer at least 9000 years to complete.

Oh gawd, it's this week's quantum-supremacy article. Whenever you see one of these stories, and there have been an endless parade of them over the past few years, you need to read the title as:

Quantum computer solves artificial problem created to be easy to solve with a quantum computer but hard to solve with a conventional computer and of no use to anyone faster than a conventional computer could.

Gordy7

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#2923861 8-Jun-2022 10:20

@neb one way or the other.... the mind boggles 😀

Because of pending (10+ years) real world quantum computers:

There are experts trying to future proof security systems and password systems.

https://www.csoonline.com/article/3653634/preparing-for-the-quantum-safe-encryption-future.html

Spies may be storing data to decrypt with quantum computers:

https://www.newscientist.com/article/2293341-spies-may-be-storing-data-to-decrypt-with-a-future-quantum-computer/

My typical 12 character password would take 34,000 years to crack with a conventional computer and less than 17 minutes with a quantum computer.

Gordy

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Batman

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#2923862 8-Jun-2022 10:22

When the Russians figure out how to use it you will have no more life to live.

Enjoy.

neb

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#2924066 8-Jun-2022 19:48

Gordy7:
@neb one way or the other.... the mind boggles 😀

Because of pending (10+ years) real world quantum computers:

In any case there's actually a much bigger threat than quantum computers that's been totally ignored by cryptographers so far.

[*] We'll have clean nuclear fusion power long before useful (non-toy) quantum computers, because the former is just a really big engineering problem while the latter requires bending or possibly breaking several laws of physics.