Comment on “Past of a quantum particle”

Zheng-Hong Li, M. Al-Amri, and M. Suhail Zubairy
Phys. Rev. A 88, 046102 – Published 29 October 2013

Abstract

We present an analysis of a nested Mach-Zehnder interferometer in which an ensemble of identical pre- and postselected particles leaves a weak trace. A knowledge of the weak value partially destroys the quantum interference. The results, contrary to some recent claims [Vaidman, Phys. Rev. A 87, 052104 (2013)], are in accordance with the usual quantum-mechanical expectations.

  • Figure
  • Received 24 June 2013

DOI:https://doi.org/10.1103/PhysRevA.88.046102

©2013 American Physical Society

Authors & Affiliations

Zheng-Hong Li1,2,3, M. Al-Amri1,2, and M. Suhail Zubairy1,3,*

  • 1Institute for Quantum Science and Engineering (IQSE) and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA
  • 2The National Center for Mathematics and Physics, KACST, P.O. Box 6086, Riyadh 11442, Saudi Arabia
  • 3Beijing Computational Science Research Center, Beijing 100084, China

  • *Corresponding author: zubairy@tamu.edu

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Article Text (Subscription Required)

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Original Article

Past of a quantum particle

L. Vaidman
Phys. Rev. A 87, 052104 (2013)

References (Subscription Required)

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Issue

Vol. 88, Iss. 4 — October 2013

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