English

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

Quantum Physics 2016-10-18 v1

Abstract

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

Keywords

Cite

@article{arxiv.1610.04781,
  title  = {Past of a particle inside an interferometer: the two-state vector approach},
  author = {Lev Vaidman},
  journal= {arXiv preprint arXiv:1610.04781},
  year   = {2016}
}

Comments

Comment on a paper which is essentially a comment on my work, so it is a reply

R2 v1 2026-06-22T16:21:58.263Z