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Open AccessArticle

The Entanglement Generation in P T -Symmetric Optical Quadrimer System

Quantum Optics and Engineering Division, Institute of Physics, University of Zielona Góra, Prof. Z. Szafrana 4a, 65-516 Zielona Góra, Poland
Joint Laboratory of Optics of Palacký University and Institute of Physics of CAS, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
Symmetry 2019, 11(9), 1110;
Received: 12 July 2019 / Revised: 12 August 2019 / Accepted: 29 August 2019 / Published: 3 September 2019
(This article belongs to the Special Issue Quantum Information and Symmetry)
We discuss a model consisting of four single-mode cavities with gain and loss energy in the first and last modes. The cavities are coupled to each other by linear interaction and form a chain. Such a system is described by a non-Hermitian Hamiltonian which, under some conditions, becomes P T -symmetric. We identify the phase-transition point and study the possibility of generation bipartite entanglement (entanglement between all pairs of cavities) in the system. View Full-Text
Keywords: ??-symmetry; entanglement; negativity ??-symmetry; entanglement; negativity
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MDPI and ACS Style

Kalaga, J.K. The Entanglement Generation in P T -Symmetric Optical Quadrimer System. Symmetry 2019, 11, 1110.

AMA Style

Kalaga JK. The Entanglement Generation in P T -Symmetric Optical Quadrimer System. Symmetry. 2019; 11(9):1110.

Chicago/Turabian Style

Kalaga, Joanna K. 2019. "The Entanglement Generation in P T -Symmetric Optical Quadrimer System" Symmetry 11, no. 9: 1110.

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