https://doi.org/10.1140/epjqt/s40507-022-00151-0
Research
Qubit noise deconvolution
1
Dipartimento di Fisica, Università di Pavia, Via Bassi 6, I-27100, Pavia, Italy
2
INFN Sezione di Pavia, Via Bassi 6, I-27100, Pavia, Italy
3
CNR-INO, Largo E. Fermi 6, I-50125, Firenze, Italy
a
stefano.mangini01@universitadipavia.it
Received:
28
January
2022
Accepted:
23
October
2022
Published online:
15
November
2022
We present a noise deconvolution technique to remove a wide class of noises when performing arbitrary measurements on qubit systems. In particular, we derive the inverse map of the most common single qubit noisy channels, and exploit it at the data processing step to obtain noise-free estimates of observables evaluated on a qubit system subject to known noise. We illustrate a self-consistency check to ensure that the noise characterization is accurate providing simulation results for the deconvolution of a generic Pauli channel, as well as experimental evidence of the deconvolution of decoherence noise occurring on Rigetti quantum hardware.
© The Author(s) 2022
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