Entropies and entanglement for decoherence without energy relaxation in a two-level atom

A. S.F. Obada; H. A. Hessian; A. B.A. Mohamed

doi:10.1088/0953-4075/40/12/002

Entropies and entanglement for decoherence without energy relaxation in a two-level atom

A. S.F. Obada
, H. A. Hessian
, A. B.A. Mohamed

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

In this paper, we investigate the temporal evolution of various measures of degree of entanglement and total correlation of a single-mode light field interacting with a two-level atom. The phase-damped cavity is taken into account. The effects of phase damping on a temporal of partial entropies for the atom and the field, total entropy, the entropy difference and the sum of negative eigenvalues of the partially transposed density matrix as a quantitative entanglement measure for the master equation in the dressed-state approximation are taken into account.

Original language	English
Article number	002
Pages (from-to)	2241-2248
Number of pages	8
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	40
Issue number	12
DOIs	https://doi.org/10.1088/0953-4075/40/12/002
State	Published - 28 Jun 2007
Externally published	Yes

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AB - In this paper, we investigate the temporal evolution of various measures of degree of entanglement and total correlation of a single-mode light field interacting with a two-level atom. The phase-damped cavity is taken into account. The effects of phase damping on a temporal of partial entropies for the atom and the field, total entropy, the entropy difference and the sum of negative eigenvalues of the partially transposed density matrix as a quantitative entanglement measure for the master equation in the dressed-state approximation are taken into account.

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Entropies and entanglement for decoherence without energy relaxation in a two-level atom

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