Potocek, V. and Ferenczi, G. (2015) Which-way information in a nested Mach-Zehnder interferometer. Physical Review A: Atomic, Molecular and Optical Physics, 92(2), 023829. (doi: 10.1103/PhysRevA.92.023829)
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Abstract
Recently, A. Danan et al. [Phys. Rev. Lett. 111, 240402 (2013)] performed a much-discussed experiment in which which-way information was obtained from the light in a nested Mach-Zehnder interferometer by weak measurement. The presented analysis using the two-state vector formalism drew the conclusions that the photons followed disconnected paths. We analyze this experiment using standard quantum optical methods and arrive at analytical expressions that match the experimental results without the need for such disconnected photon paths. We also propose a simple amendment to the experiment capable of displaying new phenomena, highlighting the advantages of our description.
Item Type: | Articles (Other) |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Potocek, Dr Vaclav |
Authors: | Potocek, V., and Ferenczi, G. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Research Group: | Quantum Theory |
Journal Name: | Physical Review A: Atomic, Molecular and Optical Physics |
Publisher: | American Physical Society |
ISSN: | 1050-2947 |
ISSN (Online): | 1094-1622 |
Copyright Holders: | Copyright © 2015 American Physical Society |
First Published: | First published in Physical Review A: Atomic, Molecular and Optical Physics 92(2):023829 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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