VIOLATION OF CLASSICAL INEQUALITIES AND EPR CORRELATIONS IN A TWO-MODE THREE-LEVEL ATOMIC SYSTEM-Reference-Cited by-同舟云学术

VIOLATION OF CLASSICAL INEQUALITIES AND EPR CORRELATIONS IN A TWO-MODE THREE-LEVEL ATOMIC SYSTEM

Published:2008-08 Issue:04 Volume:06 Page:885-898
ISSN:0219-7499
Container-title:International Journal of Quantum Information
language:en
Short-container-title:Int. J. Quantum Inform.

Author:

SETE EYOB A.¹²

Affiliation:

1. Department of Physics, New Mexico State University, Las Cruces, NM 88003, USA

2. Department of Physics and Institute for Quantum Studies, Texas A & M University, College Station, TX 77843-4242, USA

Abstract

We investigate violation of Cauchy–Schwarz and Bell inequalities in two-mode three-level cascade system with injected atomic coherence in the framework of quantum theory of multiwave mixing. We show that Cauchy–Schwarz inequality is strongly violated when there is strong entanglement in the system. It also appears that Bell inequality is violated in the region where there is weak entanglement and well-preserved where there is strong entanglement in the system. We thus note that there are states which are entangled but do not violate Bell inequality. We also show that this system can be used to prepare states that exhibit EPR correlations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Physics and Astronomy (miscellaneous)

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219749908003761

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