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Counterfactual control and quantum contextuality in multi-mode interferometers

Lookup NU author(s): Dr Jonte HanceORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

As shown in previous work, quantum contextuality can be represented by interference effects in a three-path interferometer. A Hardy-like paradox is obtained when the absence of photons in two internal paths seems to contradict the presence of photons in a specific input port. Here, we consider the effects of counterfactual control on this scenario by analyzing the changes to the paths through the interferometer when the seemingly impossible input path is blocked. The effects on photons that never interact with the absorber in the blocked path reveals a characteristic signature of quantum contextuality that may help to explain why quantum interference is incompatible with measurement independent realities.


Publication metadata

Author(s): Hofmann HF, Hance JR, Matsushita T, Ji M, Iinuma M

Editor(s): Keith S. Deacon and Ronald E. Meyers

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Quantum Communications and Quantum Imaging XXII

Year of Conference: 2024

Pages: 1314809

Online publication date: 04/10/2024

Acceptance date: 02/04/2018

Date deposited: 07/10/2024

ISSN: 1996-756X

Publisher: SPIE

URL: https://doi.org/10.1117/12.3027375

DOI: 10.1117/12.3027375

Series Title: SPIE Proceedings: Optics + Photonics - Optical Engineering + Applications


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