Correlation and entanglement of a three-level atom inside a dissipative cavity

We discuss the correlation and entanglement of a three-level atom with a single-mode quantized field in a coherent state inside a phase-damped cavity. We analyze the influence of dissipation on the quantum and classical entropy. It has been shown that the quantum, classical and nonextensive entropy...

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Bibliographic Details
Published in:Physica A 2011-07, Vol.390 (13), p.2626-2635
Main Authors: Abdel-Khalek, S., Nofal, T.A.
Format: Article
Language:English
Subjects:
Coherence
Correlation
Dissipation
Entanglement
Entropy
Holes
Phase damping
Shannon entropy
Statistical mechanics
Three-level atom
Tsallis entropy
von Neumann entropy
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Summary:We discuss the correlation and entanglement of a three-level atom with a single-mode quantized field in a coherent state inside a phase-damped cavity. We analyze the influence of dissipation on the quantum and classical entropy. It has been shown that the quantum, classical and nonextensive entropy are sensitive to any change in the initial state setting of the atom and the quantized field. The relation between the long lived entanglement and dissipation is observed. On the other hand, a short disentanglement can be generated through special values of the atomic motion parameter. ► Dynamical properties of quantum and classical entropy of moving three-level atom in the presence of damping. ► Initial state setting of the atom and the quantized field. ► Effects of the atomic motion and phase damping. ► Generation of the long lived entanglement and short disentanglement. ► Strong connection between atomic Wehrl entropy through marginal atomic Q function and entanglement.
ISSN:0378-4371
1873-2119
DOI:10.1016/j.physa.2011.02.030