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.
Authors: |
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Mohammad Abazari; Ali Mortezapour; Mohammad Mahmoudi; Mostafa Sahrai |
Journal: |
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Entropy
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Volume: |
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13 |
edition: |
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9 |
Year: |
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2011 |
Pages: |
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1541 |
Publication date: |
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25-Aug-2011 |