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Using classical bit-flip correction for error mitigation including 2-qubit correlations

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arxiv 2111.08551 v3 pith:IXMNYXSZ submitted 2021-11-16 quant-ph hep-lat

Using classical bit-flip correction for error mitigation including 2-qubit correlations

classification quant-ph hep-lat
keywords correlationserrorcasemitigationqubitreadoutapplyingbit-flip
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an error mitigation scheme which corrects readout errors on Noisy Intermediate-Scale Quantum (NISQ) computers [1,2]. After a short review of applying the method to one qubit, we proceed to discuss the case when correlations between different qubits occur. We demonstrate how the readout error can be mitigated in this case. By performing experiments on IBMQ hardware, we show that such correlations do not have a strong effect on the results, justifying to neglect them.

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