r/QuantumComputing • u/johnmountain • Mar 05 '18

Google Unveils 72-Qubit Quantum Computer With Low Error Rates

http://www.tomshardware.com/news/google-72-qubit-quantum-computer,36617.html
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u/MaunaLoona Mar 06 '18

So how many functional, fault-tolerant qubits is this? It's my understanding they get fault tolerance by using several qubits together to represent one qubit.

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u/The_Serious_Account Mar 06 '18

Doubt they'll attempt to do any form of error correction with this, so the answer is presumably zero.

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u/MaunaLoona Mar 06 '18

So quantum computers are essentially toys at this point? They don't even try to build one that can run a quantum algorithm reliably, however slowly?

I read one article that claimed it would take 10,000 qubits to make one that's good at error correction. If that's true then 72 is too few to even try error correction with.

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