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For questions about QEM (Quantum Error Mitigation) which is different from Quantum Error Correction in that no extra qubits are used.

2
votes
The current gold standard method for this is to simulate various error rates and code distances, and do a linear fit of code distance vs log logical error rate. This allows you to project the code dis …
answered Jan 13 by Craig Gidney
4
votes
If your quantum circuit mitigates noise, it can also mitigate the approximations in a simulation. It can allow you to use a noisier more-approximate cheaper-to-run simulation. Of course, the noise you …
answered Dec 27 '21 by Craig Gidney
5
votes
The issue is that you are using noisy hardware with imperfect operations and measurements. In particular, the most likely problem here is that after you prepare a qubit it immediately begins decaying …
answered Jul 14 '20 by Craig Gidney