Qubit noise deconvolution

Year: 2022

Authors: Mangini S., Maccone L., Macchiavello C.

Autors Affiliation: Univ Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy; Ist Nazl Fis Nucl, Sez Pavia, Via Bassi 6, I-27100 Pavia, Italy; CNR, INO, Largo E Fermi 6, I-50125 Florence, Italy.

Abstract: 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.

Journal/Review: EPJ QUANTUM TECHNOLOGY

Volume: 9 (1)      Pages from: 29-1  to: 29-30

More Information: This material is based upon work supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Superconducting Quantum Materials and Systems Center (SQMS) under contract number DE-AC02-07CH11359.
KeyWords: Quantum; Decoherence; Maps
DOI: 10.1140/epjqt/s40507-022-00151-0

ImpactFactor: 5.300
Citations: 6
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24
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