Mitigating Errors in DC Magnetometry via Zero-Noise Extrapolation

Fuente: arXiv
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Autori principali: Van Dyke, John S., White, Zackary, Quiroz, Gregory
Natura: Preprint
Pubblicazione: 2024
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author Van Dyke, John S.
White, Zackary
Quiroz, Gregory
author_facet Van Dyke, John S.
White, Zackary
Quiroz, Gregory
contents Zero-noise extrapolation (ZNE), a technique to estimate quantum circuit expectation values through noise scaling and extrapolation, is well-studied in the context of quantum computing. We examine the applicability of ZNE to the field of quantum sensing. Focusing on the problem of DC magnetometry using the Ramsey protocol, we show that the sensitivity (in the sense of the minimum detectable signal) does not improve upon using ZNE in the slope detection scheme. On the other hand, signals of sufficiently large magnitude can be estimated more accurately. Our results are robust across various noise models and design choices for the ZNE protocols, including both single-qubit and multi-qubit entanglement-based sensing.
format Preprint
id arxiv_https___arxiv_org_abs_2402_16949
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Mitigating Errors in DC Magnetometry via Zero-Noise Extrapolation
Van Dyke, John S.
White, Zackary
Quiroz, Gregory
Quantum Physics
Zero-noise extrapolation (ZNE), a technique to estimate quantum circuit expectation values through noise scaling and extrapolation, is well-studied in the context of quantum computing. We examine the applicability of ZNE to the field of quantum sensing. Focusing on the problem of DC magnetometry using the Ramsey protocol, we show that the sensitivity (in the sense of the minimum detectable signal) does not improve upon using ZNE in the slope detection scheme. On the other hand, signals of sufficiently large magnitude can be estimated more accurately. Our results are robust across various noise models and design choices for the ZNE protocols, including both single-qubit and multi-qubit entanglement-based sensing.
title Mitigating Errors in DC Magnetometry via Zero-Noise Extrapolation
topic Quantum Physics
url https://arxiv.org/abs/2402.16949