Effect of atomic spontaneous decay on entanglement in the generalized Jaynes-Cummings model

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

doi:10.1016/j.aop.2009.11.008

Effect of atomic spontaneous decay on entanglement in the generalized Jaynes-Cummings model

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

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

12 Scopus citations

Abstract

Some aspects of the irreversible dynamics of a generalized Jaynes-Cummings model are addressed. By working in the dressed-state representation, it is possible to split the dynamics of the entanglement and coherence. The exact solution of the master equation in the case of a high-Q cavity with atomic decay is found. Effects of the atomic spontaneous decay on the temporal evolution of partial entropies of the atom or the field and the total entropy as a quantitative measure entanglement are elucidated. The degree of entanglement, through the sum of the negative eigenvalues of the partially transposed density matrix and the negative mutual information has been studied and compared with other measures.

Original language	English
Pages (from-to)	519-527
Number of pages	9
Journal	Annals of Physics
Volume	325
Issue number	3
DOIs	https://doi.org/10.1016/j.aop.2009.11.008
State	Published - Mar 2010
Externally published	Yes

Keywords

Atomic damping
Dressed-state
Entanglement
Master equation
Negativity

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10.1016/j.aop.2009.11.008

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abstract = "Some aspects of the irreversible dynamics of a generalized Jaynes-Cummings model are addressed. By working in the dressed-state representation, it is possible to split the dynamics of the entanglement and coherence. The exact solution of the master equation in the case of a high-Q cavity with atomic decay is found. Effects of the atomic spontaneous decay on the temporal evolution of partial entropies of the atom or the field and the total entropy as a quantitative measure entanglement are elucidated. The degree of entanglement, through the sum of the negative eigenvalues of the partially transposed density matrix and the negative mutual information has been studied and compared with other measures.",

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AU - Hessian, H. A.

AU - Obada, A. S.F.

AU - Mohamed, A. B.A.

PY - 2010/3

Y1 - 2010/3

N2 - Some aspects of the irreversible dynamics of a generalized Jaynes-Cummings model are addressed. By working in the dressed-state representation, it is possible to split the dynamics of the entanglement and coherence. The exact solution of the master equation in the case of a high-Q cavity with atomic decay is found. Effects of the atomic spontaneous decay on the temporal evolution of partial entropies of the atom or the field and the total entropy as a quantitative measure entanglement are elucidated. The degree of entanglement, through the sum of the negative eigenvalues of the partially transposed density matrix and the negative mutual information has been studied and compared with other measures.

AB - Some aspects of the irreversible dynamics of a generalized Jaynes-Cummings model are addressed. By working in the dressed-state representation, it is possible to split the dynamics of the entanglement and coherence. The exact solution of the master equation in the case of a high-Q cavity with atomic decay is found. Effects of the atomic spontaneous decay on the temporal evolution of partial entropies of the atom or the field and the total entropy as a quantitative measure entanglement are elucidated. The degree of entanglement, through the sum of the negative eigenvalues of the partially transposed density matrix and the negative mutual information has been studied and compared with other measures.

KW - Atomic damping

KW - Dressed-state

KW - Entanglement

KW - Master equation

KW - Negativity

UR - https://www.scopus.com/pages/publications/75949110973

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DO - 10.1016/j.aop.2009.11.008

M3 - Article

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SN - 0003-4916

VL - 325

SP - 519

EP - 527

JO - Annals of Physics

JF - Annals of Physics

IS - 3

ER -

Effect of atomic spontaneous decay on entanglement in the generalized Jaynes-Cummings model

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Keywords

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