Error-Disturbance Trade-off in Sequential Quantum Measurements

We derive a state-dependent error-disturbance trade-off based on a statistical distance in the sequential measurements of a pair of noncommutative observables and experimentally verify the relation with a photonic qubit system. We anticipate that this Letter may further stimulate the study on the qu...

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Bibliographic Details
Published in:Physical review letters 2019-03, Vol.122 (9), p.090404-090404, Article 090404
Main Authors: Mao, Ya-Li, Ma, Zhi-Hao, Jin, Rui-Bo, Sun, Qi-Chao, Fei, Shao-Ming, Zhang, Qiang, Fan, Jingyun, Pan, Jian-Wei
Format: Article
Language:English
Subjects:
Error analysis
Photonics
Quantum theory
Qubits (quantum computing)
Tradeoffs
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Summary:We derive a state-dependent error-disturbance trade-off based on a statistical distance in the sequential measurements of a pair of noncommutative observables and experimentally verify the relation with a photonic qubit system. We anticipate that this Letter may further stimulate the study on the quantum uncertainty principle and related applications in quantum measurements.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.122.090404