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The slightly mind blowing bit is detailed here: > https://research.google/blog/making-quantum-error-correction-work/ https://research.google/blog/making-quantum
by fidotron 2y ago
The slightly mind blowing bit is detailed here:
> https://research.google/blog/making-quantum-error-correction-work/ https://research.google/blog/making-quantum-error-correction...
“the first quantum processor where error-corrected qubits get exponentially better as they get bigger”
Achieving this turns the normal problem of scaling quantum computation upside down.
- thrance 2y agoIt also breaks a fundamental law of quantum theory, that the bigger a system in a quantum state is, the faster it collapses, exponentially so. Which should at least tell you to take Google's announcement with z grain of salt.
- wasabi991011 2y agoThis is not a "fundamental law of quantum theory", as evidenced by the field of quantum error correcting codes. Google's announcement is legit, and is in line with what theory and simulations expect.
- bgnn 2y agoHmm why? I thought the whole idea was this would work eventually. Physical qubit vs logical qubit distinction is there already for a long time. The scaling problem is multifaceted. IMHO the physical qubits are the biggest barrier to scaling.
- fidotron 2y ago> Hmm why? In theory, theory and practice are the same.