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Open Quantum Systems Decoherence
Entanglement Theory Quantum Correlations
Comment on "One-state vector formalism for the evolution of a quantum state through nested Mach-Zehnder interferometers"
arXiv
Authors: Lev Vaidman
Year
2015
Paper ID
27544
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
N/A
Abstract
Bartkiewicz et al. [Phys. Rev. A 91, 012103 (2015)] provided an alternative analysis of experiment performed by Danan et al. [Phys. Rev. Lett. 111, 240402 (2013)] which presented surprising evidence regarding the past of photons passing through an interferometer. They argued that the quantity used by Danan et al. is not a suitable which-path witness, and proposed an alternative. It is argued that the quantum and classical analyses of Bartkiewicz et al. are inconsistent and both are inappropriate for describing the past of photons in a properly working interferometer.
Why This Paper Matters
- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
- It adds a 2015 reference point for readers tracking recent quantum research.
- Bartkiewicz et al.
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