Past of a particle inside an interferometer: the two-state vector\n approach

2016/10/15 by Lev Vaidman, Vaidman, Lev
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.1610.04781

openalex publication_date 2016/10/15 · openalex created_date 2022/08/22 · openalex updated_date 2026/07/28

Abstract

Hashmi et al. [J. Phys. A 49, 345302 (2016)] claimed that the approach to the\npast of a quantum particle introduced by Vaidman [Phys. Rev. A 87, 052104\n(2013)] has difficulties in certain examples and that it even can be refuted.\nHere I reply to their criticism showing that the approach provides a good\nexplanation of all examples they considered. It is fully consistent with\nstandard quantum mechanics and provides a useful tool for analyzing\ninterference experiments.\n

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