Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.79.052108
Title: Duality relation and joint measurement in a Mach-Zehnder interferometer
Authors: Liu, N.-L.
Li, L.
Yu, S. 
Chen, Z.-B.
Issue Date: 11-May-2009
Citation: Liu, N.-L., Li, L., Yu, S., Chen, Z.-B. (2009-05-11). Duality relation and joint measurement in a Mach-Zehnder interferometer. Physical Review A - Atomic, Molecular, and Optical Physics 79 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.79.052108
Abstract: The Mach-Zehnder interferometric setup quantitatively characterizing the wave-particle duality implements in fact a joint measurement of two unsharp observables. We present a necessary and sufficient condition for such a pair of unsharp observables to be jointly measurable. The condition is shown to be equivalent to a duality inequality, which for the optimal strategy of extracting the which-path information is more stringent than the Jaeger-Shimony-Vaidman- Englert inequality. © 2009 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96268
ISSN: 10502947
DOI: 10.1103/PhysRevA.79.052108
Appears in Collections:Staff Publications

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