Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Chinese Physics

Linear entropies in the Jaynes–Cummings model with intensity-dependent coupling in a phase-damped cavity

Qingchun Zhou, Zhu Shi-Ning

Published May 3, 2005• 15 citations
Publisher

Abstract

We investigate the evolution of a quantum system described by the Jaynes–Cummings model with an arbitrary form of intensity-dependent coupling by displaying the linear entropies of the atom, field and atom–field system in the large detuning approximation. The cavity field is assumed to be coupled to a reservoir with a phase-damping coupling. The effects of cavity phase damping on the entanglement and coherence loss of such a system are studied.

DOI
10.1088/1009-1963/14/6/016

Related papers

Linear entropy dynamics of the field in the Jaynes－Cummings model with an intensity-dependent coupling in the dispersive approximation

李春先, 方卯发

We present the linear entropy dynamics of the field state in the dispersive cavity in the Jaynes-Cummings model with an intensity-dependent coupling in the dispersive approximation, and investigate the influence of dissipation on entanglement between the field and the atoms. We show that the coherence properties of the field are also affected by the cavity when the nonlinear process of the field interacting with the atoms with an intensity-dependent coupling is involved, and find that the dissipation constant, the intensity of the field and the atomic distribution angle have different influence on the coherence properties of the field.

中国物理B：英文版•Mar 16, 2005•0 citations

Entropy and entanglement in the Jaynes–Cummings model with effects of cavity damping

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

The temporal evolution of entanglement for a single-mode field interacting with a two-level atom via intensity-dependent coupling in the off-resonant case has been studied, where the leakage of photon through the cavity is taken into account. The effects of cavity damping on the coherence properties of the atom and the field are studied. The amount of entanglement is compared with the total correlations. It is found that the atom–field system is inhibited from going into a pure state in the off-resonant case.

Journal of Physics B Atomic Molecular and Optical Physics•Jun 23, 2008•12 citations

Linear entropy dynamics of the field in the Jaynes-Cummings model with an intensity-dependent coupling in the dispersive approximation

Chun-Xian Li, Mao-Fa Fang

We present the linear entropy dynamics of the field state in the dispersive cavity in the Jaynes-Cummings model with an intensity-dependent coupling in the dispersive approximation and investigate the influence of dissipation on entanglement between the field and the atoms. We show that the coherence properties of the field are also affected by the cavity when the nonlinear process of the field interacting with the atoms with an intensity-dependent coupling is involved and find that the dissipation constant, the intensity of the field and the atomic distribution angle have different influence on the coherence properties of the field.

Chinese Physics•Jul 17, 2003•14 citations

Atom-field entanglement for Jaynes–Cummings model with an intensity-depend coupling

Eugene K. Bashkirov, Eugenya V Grishina, Elena Yu Sochkova

We investigate the evolution of a quantum system described by the two-atom Jaynes–Cummings model with an intensity-dependent couplings by displaying the linear atomic entropy and the asymptotic behavior of state vector. The possibility of the system being initially in a pure disentangled state to revive into this state during the evolution process is shown. Conditions and times of disentanglement are derived.

•Jun 1, 2013•0 citations

Atom-field entanglement in two-atom Jaynes-Cummings model with intensity-dependent couplings

Elena Yu Sochkova

We investigate the evolution of a quantum system described by the two-atom Jaynes-Cummings model with an intensity-dependent couplings by displaying the linear atomic entropy and the asymptotic behavior of state vector. The possibility of the system being initially in a pure disentangled state to revive into this state during the evolution process is shown. Conditions and times of disentanglement are derived.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Feb 26, 2013•0 citations

Dispersive limit of the dissipative Jaynes–Cummings model with a squeezed reservoir

V. V. Dodonov, Wagner Duarte José, Salomon Sylvain Mizrahi

We consider the dynamics of an atom–field system in a cavity described by means of the Jaynes–Cummings model in the dispersive limit, assuming that the electromagnetic field is interacting with a squeezed, or phase-sensitive, reservoir. After obtaining the solution of the master equation in terms of Wigner functions, we do an analysis of the system evolution and its asymptotical behaviour in terms of the so-called Mandel Q parameter and the linear entropies of the total system and the reduced system, associated with field and atom.

Journal of Optics B Quantum and Semiclassical Optics•Oct 16, 2003•11 citations
We investigate the evolution of a quantum system described by the Jaynes–Cummings model with an arbitrary form of intensity-dependent coupling by displaying the linear entropies of the atom, field and atom–field system in the large detuning approximation. The cavity field is assumed to be coupled to a reservoir with a phase-damping coupling. The effects of cavity phase damping on the entanglement and coherence loss of such a system are studied.
We present the linear entropy dynamics of the field state in the dispersive cavity in the Jaynes-Cummings model with an intensity-dependent coupling in the dispersive approximation, and investigate the influence of dissipation on entanglement between the field and the atoms. We show that the coherence properties of the field are also affected by the cavity when the nonlinear process of the field interacting with the atoms with an intensity-dependent coupling is involved, and find that the dissipation constant, the intensity of the field and the atomic distribution angle have different influence on the coherence properties of the field.
The temporal evolution of entanglement for a single-mode field interacting with a two-level atom via intensity-dependent coupling in the off-resonant case has been studied, where the leakage of photon through the cavity is taken into account. The effects of cavity damping on the coherence properties of the atom and the field are studied. The amount of entanglement is compared with the total correlations. It is found that the atom–field system is inhibited from going into a pure state in the off-resonant case.
We present the linear entropy dynamics of the field state in the dispersive cavity in the Jaynes-Cummings model with an intensity-dependent coupling in the dispersive approximation and investigate the influence of dissipation on entanglement between the field and the atoms. We show that the coherence properties of the field are also affected by the cavity when the nonlinear process of the field interacting with the atoms with an intensity-dependent coupling is involved and find that the dissipation constant, the intensity of the field and the atomic distribution angle have different influence on the coherence properties of the field.
We consider the dynamics of an atom–field system in a cavity described by means of the Jaynes–Cummings model in the dispersive limit, assuming that the electromagnetic field is interacting with a squeezed, or phase-sensitive, reservoir. After obtaining the solution of the master equation in terms of Wigner functions, we do an analysis of the system evolution and its asymptotical behaviour in terms of the so-called Mandel Q parameter and the linear entropies of the total system and the reduced system, associated with field and atom.