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

Journal of Hunan Light Industry College

Evolution of the Entropy of Squeezed Field Interacting with the Three Level Atom via Intensity-dependent Coupling

Fang Jia-Yuan

Published Jan 1, 2005• 0 citations
OpenAlex

Abstract

The evolution properties of the entropy of squeezed field interacting with the V-type three level atom via intensity-dependent coupling have been studied.The discussion is focused on the influence of the detuning and initial squeezing factor of light on the field entropy.The results show that the field entropy value rises with the increasing of initial squeezing factor of light.When the squeezing factor is smaller,the field entropy evolution is periodic and this periodicity vanishes gradually with the increasing of initial squeezing factor of light.The detuning influences remarkably on the field entropy which oscilates irregularly with the increasing of detuning.

Related papers

Evolution of the entropy of light field interacting with the V-type three-level atom via intensity-dependent coupling

Huang Chun-Jia, He Hui-Yong, Kong Fan-Zhi +2 more

The evolution properties of the entropy of a single-mode light field interacting with the V-type three-level atom via intensity-dependent coupling have been studied. The discussion is centered on the influence of detuning and initial photon number on the field entropy evolution. The results show that the behavi or of the field entropy is non-periodic for the cases of small detuning and weak initial light field,being similar to the single-photon Jaynes-Cummings model (JCM). On the contrary,the field entropy evolution is periodic for the cases of large detuning or strong initial light field,being similar to the two-photon JCM

Acta Physica Sinica•Jan 1, 2004•1 citation

Squeezing properties of light field interacting with the A-type three level atom via intensity-dependent coupling

Huang Chun-Jia

The squeezing properties of light field interacting with the A-type three level atom via intensity-dependent coupling are studied and the influences of detuning between the atomic transition frequency and the light frequency in single-photon process and the initial squeezing of light on the light squeezing are discussed emphatically. The results show that both the detuning and the initial squeezing of light strongly influence the squeezing of field. The light squeezing remains continuous if the detuning is big enough, but if the detuning is little the light field will be squeezed periodically. The bigger the initial squeezing factor of light is, the deeper the light squeezing is.

Chinese Journal of Quantum Electronics•Jan 1, 2005•0 citations

Entropy Properties of the Field of Coupled Identical Λtype Threelevel Atoms Interacting with Vacuum Field in Cavity Filled with Kerr Medium

李可 Li Ke, 令维军 LING Weijun, 王志坚 WANG Zhijiang

The entropy properties of the light field of coupled identical Λ-type three-level atoms interacting with vacuum field in cavity filled with Kerr medium were investigated by means of quantum theory.The time evolutions of the entropy of the light field were discussed via the initial state of the system,detuning,coupling coefficient between the atoms,and the Kerr coefficient.Numerical calculation results show that the evolution of the entropy of the light field exhibits periodic oscillation,and its frequency and amplitude are intensively dependent on the initial state of the system.When the detuning the oscillation amplitude decreases with the increases of coupling strength and Kerr coefficient.

ACTA PHOTONICA SINICA•Jan 1, 2011•0 citations

Properties of field quantum entropy evolution in the Jaynes–Cummings model with initial squeezed coherent states field

Liu Wang-Yun, Yuying An, Yang Zhi-yong

The properties of the field quantum entropy evolution in a system of a single-mode squeezed coherent state field interacting with a two-level atom is studied by utilizing the complete quantum theory, and we focus our attention on the discussion of the influences of field squeezing parameter γ, atomic distribution angle θ and coupling strength g between the field and the atom on the properties of the evolution of field quantum entropy. The results obtained from numerical calculation indicate that the amplitude of oscillation of field quantum entropy evolution decreases with the increasing of squeezing parameter γ, and that both atomic distribution angle θ and coupling strength g between the field and the atom can influence the periodicity of field quantum entropy evolution.

Chinese Physics•Dec 1, 2007•8 citations

Quantum Entanglement of the Squeezed Coherent State Interacting with a Λ-type Three-level Atom

Cui Ying-hua

Quantum entanglement between a squeezed coherent state and a Λ-type three level atom was studied via quantum entropy theory.The results show that the maximal degree of entanglement depends on the initial state parameters of the atom,squeezing factor,coherent amplitude factor,and the ratio of detuning to coupling constant.The entanglement strengthens with the increasing of squeezing factor of light.The entanglement occurs periodic evolution with the increasing of the ratio of detuning to coupling constant,the system appears disentanglement.When the ratio of detuning to coupling constant becomes larger,the entanglement between the field and atoms shows periodical change.The system appears steady and maximal entanglement state periodically as the ratio of detuning to coupling constant is sufficiently large.

ACTA PHOTONICA SINICA•Jan 1, 2009•0 citations

Light squeezing in the system of squeezed vacuum field interacting with the V-type three-level atom via intensity-dependent coupling without rotating wave approximation

M. Zhou

The time evolution of light squeezing in the system of squeezed vacuum field interacting with V-type three-level atom via intensity-dependent coupling is studied by means of the quantum theory without rotating wave approximation.The result obtained by means of numerical method indicate that the light field is periodically squeezed,Moreover,the squeezing of light field is restrained and the quantum chaos caused by the virtual-photon process depend on the initial state parameters of the system:r,ω and g.When r increases,the inhibition of squeezing of light field by the virtual-photon process becomes stronger and then weaker.When ω and g increase,the quantum chaos gradually become weak or strong respectively.

Journal of Atomic and Molecular Physics•Jan 1, 2007•0 citations
The evolution properties of the entropy of squeezed field interacting with the V-type three level atom via intensity-dependent coupling have been studied.The discussion is focused on the influence of the detuning and initial squeezing factor of light on the field entropy.The results show that the field entropy value rises with the increasing of initial squeezing factor of light.When the squeezing factor is smaller,the field entropy evolution is periodic and this periodicity vanishes gradually with the increasing of initial squeezing factor of light.The detuning influences remarkably on the field entropy which oscilates irregularly with the increasing of detuning.
The evolution properties of the entropy of a single-mode light field interacting with the V-type three-level atom via intensity-dependent coupling have been studied. The discussion is centered on the influence of detuning and initial photon number on the field entropy evolution. The results show that the behavi or of the field entropy is non-periodic for the cases of small detuning and weak initial light field,being similar to the single-photon Jaynes-Cummings model (JCM). On the contrary,the field entropy evolution is periodic for the cases of large detuning or strong initial light field,being similar to the two-photon JCM
The squeezing properties of light field interacting with the A-type three level atom via intensity-dependent coupling are studied and the influences of detuning between the atomic transition frequency and the light frequency in single-photon process and the initial squeezing of light on the light squeezing are discussed emphatically. The results show that both the detuning and the initial squeezing of light strongly influence the squeezing of field. The light squeezing remains continuous if the detuning is big enough, but if the detuning is little the light field will be squeezed periodically. The bigger the initial squeezing factor of light is, the deeper the light squeezing is.
The entropy properties of the light field of coupled identical Λ-type three-level atoms interacting with vacuum field in cavity filled with Kerr medium were investigated by means of quantum theory.The time evolutions of the entropy of the light field were discussed via the initial state of the system,detuning,coupling coefficient between the atoms,and the Kerr coefficient.Numerical calculation results show that the evolution of the entropy of the light field exhibits periodic oscillation,and its frequency and amplitude are intensively dependent on the initial state of the system.When the detuning the oscillation amplitude decreases with the increases of coupling strength and Kerr coefficient.
The properties of the field quantum entropy evolution in a system of a single-mode squeezed coherent state field interacting with a two-level atom is studied by utilizing the complete quantum theory, and we focus our attention on the discussion of the influences of field squeezing parameter γ, atomic distribution angle θ and coupling strength g between the field and the atom on the properties of the evolution of field quantum entropy. The results obtained from numerical calculation indicate that the amplitude of oscillation of field quantum entropy evolution decreases with the increasing of squeezing parameter γ, and that both atomic distribution angle θ and coupling strength g between the field and the atom can influence the periodicity of field quantum entropy evolution.
Quantum entanglement between a squeezed coherent state and a Λ-type three level atom was studied via quantum entropy theory.The results show that the maximal degree of entanglement depends on the initial state parameters of the atom,squeezing factor,coherent amplitude factor,and the ratio of detuning to coupling constant.The entanglement strengthens with the increasing of squeezing factor of light.The entanglement occurs periodic evolution with the increasing of the ratio of detuning to coupling constant,the system appears disentanglement.When the ratio of detuning to coupling constant becomes larger,the entanglement between the field and atoms shows periodical change.The system appears steady and maximal entanglement state periodically as the ratio of detuning to coupling constant is sufficiently large.
The time evolution of light squeezing in the system of squeezed vacuum field interacting with V-type three-level atom via intensity-dependent coupling is studied by means of the quantum theory without rotating wave approximation.The result obtained by means of numerical method indicate that the light field is periodically squeezed,Moreover,the squeezing of light field is restrained and the quantum chaos caused by the virtual-photon process depend on the initial state parameters of the system:r,ω and g.When r increases,the inhibition of squeezing of light field by the virtual-photon process becomes stronger and then weaker.When ω and g increase,the quantum chaos gradually become weak or strong respectively.