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Entropy 2011, 13(9), 1541-1554; doi:10.3390/e13091541
Article

Phase-Controlled Atom-Photon Entanglement in a Three-Level V-Type Atomic System via Spontaneously Generated Coherence

1, 2, 1,*  and 3
1 Physics Department, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran 2 Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-159, Zanjan, Iran 3 Research Institute for Applied Physics and Astronomy, University of Tabriz, P. O. Box 51665-163, Tabriz, Iran
* Author to whom correspondence should be addressed.
Received: 20 May 2011 / Revised: 4 July 2011 / Accepted: 6 July 2011 / Published: 25 August 2011
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Abstract

We investigate the dynamical behavior of the atom-photon entanglement in a V-type three-level quantum system using the atomic reduced entropy. It is shown that an atom and photons are entangled at the steady-state; however disentanglement can also be achieved in an special condition. It is demonstrated that in the presence of quantum interference induced by spontaneous emission, the reduced entropy and the atom-photon entanglement are phase-dependent. A non-stationary solution is also obtained when the quantum interference due to the spontaneous emission is completely included.
Keywords: quantum interference; quantum entanglement; quantum entropy; phase-dependent quantum interference; quantum entanglement; quantum entropy; phase-dependent
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Abazari, M.; Mortezapour, A.; Mahmoudi, M.; Sahrai, M. Phase-Controlled Atom-Photon Entanglement in a Three-Level V-Type Atomic System via Spontaneously Generated Coherence. Entropy 2011, 13, 1541-1554.

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