Steering-enhanced quantum metrology using superpositions of noisy phase shifts

Kuan Yi Lee, Jhen Dong Lin, Adam Miranowicz, Franco Nori, Huan Yu Ku, Yueh Nan Chen

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

Quantum steering is an important correlation in quantum information theory. A recent work [Nat. Commun. 12, 2410 (2021)NCAOBW2041-172310.1038/s41467-021-22353-3] showed that quantum steering is also useful for quantum metrology. Here, we extend the exploration of steering-enhanced quantum metrology from single noiseless phase shifts to superpositions of noisy phase shifts. As concrete examples, we consider a control system that manipulates a target system to pass through a superposition of either dephased or depolarized phase shifts channels. We show that using such superpositions of noisy phase shifts can suppress the effects of noise and improve metrology. Furthermore, we also implemented proof-of-principle experiments for a superposition of dephased phase shifts on the IBM quantum experience, demonstrating a clear improvement on metrology.

原文English
文章編號013103
期刊Physical Review Research
5
發行號1
DOIs
出版狀態Published - 2023 1月

All Science Journal Classification (ASJC) codes

  • 一般物理與天文學

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