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Quantum double lock-in amplifier

Physics

Quantum double lock-in amplifier

S. Chen, M. Zhuang, et al.

This groundbreaking research by Sijie Chen, Min Zhuang, Ruihuang Fang, Yun Chen, Chengyin Han, Bo Lu, Jiahao Huang, and Chaohong Lee introduces a novel quantum double lock-in amplifier that showcases enhanced measurement efficiency and resilience against experimental imperfections, all through the use of Rb atoms. Discover how this protocol could revolutionize quantum sensing!

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Playback language: English
Abstract
This paper presents a general protocol for a quantum double lock-in amplifier using two quantum mixers with orthogonal pulse sequences. The feasibility is demonstrated using a five-level double-Λ coherent population trapping system with Rb atoms, reducing measurement time and mitigating time-dependent errors. The system shows robustness against experimental imperfections, paving the way for advanced quantum sensing.
Publisher
Communications Physics
Published On
Jun 13, 2024
Authors
Sijie Chen, Min Zhuang, Ruihuang Fang, Yun Chen, Chengyin Han, Bo Lu, Jiahao Huang, Chaohong Lee
Tags
quantum sensing
double lock-in amplifier
quantum mixers
coherent population trapping
Rb atoms
measurement efficiency
experimental imperfections

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