this post was submitted on 10 Dec 2024
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[–] datendefekt 9 points 1 week ago (2 children)

Because quantum physics. A qubit isn't 0 or 1, it's both and everything in between. You get a result as a distribution, not as distinct values.

Qubits are represented as (for example) quantumly entangled electron spins. And due to the nature of quantum physics, they are not very stable, and you cannot measure a value without influencing it.

Granted, my knowledge of quantum computing is very hand-wavy.

[–] 0x0@programming.dev 2 points 1 week ago (1 children)

and you cannot measure a value without influencing it.

Which, to me, kinda defeats the whole purpose. I'm yet to wrap my head around this whole quantum thing.

[–] frezik@midwest.social 4 points 1 week ago

It's important to how they operate. The idea is that when you measure the value, it collapses into the right answer.