All the other qubits scaled the same way when they were in a simulator, too. When they actually hit reality, they all had huge problems.

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adastra22 8 months ago | parent [-]

Other qubits in general do not scale the same way. Some for example do not allow arbitrary point-to-point interactions, which means doubling your physical qubits doesn’t double your number of logical qubits. There are other ways in which scaling was sometimes nonlinear.

Note also that this isn’t a simulated result. Microsoft has an 8-qubit chip they are making available on Azure.

	▲	pclmulqdq 8 months ago \| parent [-]
		I am well aware of how other qubits scale, but I am also aware that the physicists who created them didn't expect decoherence to scale this rapidly at the time they took that approach. IBM sells you 400 qubits with huge coherence problems. When IBM had an 8-qubit chip, they were also pretty stable.