Bell-inequality tests using asymmetric entangled coherent states in asymmetric lossy environments

Chae-Yeun Park and Hyunseok Jeong
Phys. Rev. A 91, 042328 – Published 23 April 2015

Abstract

We study an asymmetric form of the two-mode entangled coherent state (ECS), where the two local amplitudes have different values, as a tool for testing the Bell-Clauser-Horne-Shimony-Holt (Bell-CHSH) inequality. We find that the asymmetric ECSs have obvious advantages over the symmetric form of ECSs in testing the Bell-CHSH inequality. We further study an asymmetric strategy in distributing an ECS over a lossy environment and find that such a scheme can significantly increase violation of the inequality.

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  • Received 5 January 2015

DOI:https://doi.org/10.1103/PhysRevA.91.042328

©2015 American Physical Society

Authors & Affiliations

Chae-Yeun Park and Hyunseok Jeong*

  • Center for Macroscopic Quantum Control, Department of Physics and Astronomy, Seoul National University, Seoul, 151-742, Korea

  • *h.jeong37@gmail.com

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Issue

Vol. 91, Iss. 4 — April 2015

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