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 Journal of Quantum Electronics

Entropy squeezing of the moving atom interacting with the two-mode squeezing vacuum field

Yang Rui-fang

Published Jan 1, 2007• 0 citations
OpenAlex

Abstract

The information entropy squeezing properties of the atom in motion interacting with the two-mode squeezing vacuum field via two-photon transition are studied by means of quantum theory.The influences of the velocity of atomic motion,the field structure and the parameter of squeezing field on the information entropy squeezing properties of the atom are investigated as the initial atom is in any state.The results indicate that the value of squeezed component of the atomic dipole,squeezed frequency,amplitude and squeezed direction of the atomic information entropy can be controlled by choosing the atomic initial state,the velocity of atomic motion,the field structure and the squeezing factor of field and the squeezing phase angle of the field,respectively.In the longer time,squeezing effects of the atom in motion can be obtained by choosing the system parameters.The mixing degree of atomic initial state has no influence on the entropy squeezing of the atom in motion.

Related papers

Entropy squeezing of the moving atom interacting with the binomial light field

Cui Ying

The information entropy squeezing properties of the atom in motion interacting with the binomial states field via single photon transition are studied by means of quantum theory.The influences of the parameter of light field on the information entropy squeezing properties of the atom are investigated as the initial atom is in any state.The results indicate that the value of squeezed component of the atomic dipole,amplitude,squeezed time and squeezed direction of the atomic information entropy can be controlled by choosing the atomic initial state,the field structure parameter,the velocity of atomic motion.It is shown that the moving atom may exhibit the long time squeezing effect for some parameters.

Journal of Atomic and Molecular Physics•Jan 1, 2008•0 citations

Information entropy squeezing of the atom of an arbitrary initial state via the two-photon process

Xiaojuan Liu, Zhou Bing-Ju, Mao-Fa Fang +2 more

From the quantum information point of view we investigate the entropy squeezing properties of a two_level atom with arbitrary initial state interacting with the coherent field via the two_photon process. The influence of the initial state of the system on the atomic information entropy squeezing is discussed. The numerical results obtained from the uncertainly relation of quantum information entropy are compared with those obtained from the uncertainly relation of Heisenberg. It is shown that the number of squeezed component of the atomic dipole, squeezed frequency, squeezed amplitude and squeezed direction of the atomic information entropy squeezing can be controlled by choosing the initial atomic distribution angle, the atomic mixing degree and the relative phase of the field mode, respectively. Quantum information entropy is a remarkable precise measure for the atomic squeezing.

Acta Physica Sinica•Jan 1, 2006•5 citations

The Evolution Properties of the Field Entropy in the System of Two-mode Squeezing Vacuum Field with Atomic Motion

Yongping Li

The entropy evolution properties of field in the system of two-mode squeezing vacuum field interacting with the atomic motion are studied by means of quantum theory.The influences of atomic motion and the field structure in different initial states are discussed emphatically.The results show that the field entropy is determined by the velocity of the atomic motion and the parameter of the field mode structure through time parameter sin~2(epgt/2).The atomic motion and the parameter of the field mode structure lead to additional vibration entropy.

Acta Sinica Quantum Optica•Jan 1, 2006•0 citations

Information Entropy Squeezing of a Two-Level Atom Interacting with Two-Mode Coherent Fields

LIUXiao-Juan, Xiao-Juan, Fang +1 more

From a quantum information point of view we investigate the entropy squeezing properties for a two-level atom interacting with the two-mode coherent fields via the two-photon transition. We discuss the influences of the initial state of the system on the atomic information entropy squeezing. Our results show that the squeezed component number,squeezed direction, and time of the information entropy squeezing can be controlled by choosing atomic distribution angle,the relative phase between the atom and the two-mode field, and the difference of the average photon number of the two field modes, respectively. Quantum information entropy is a remarkable precision measure for the atomic squeezing.

理论物理通讯：英文版•Jan 1, 2004•0 citations

Information Entropy Squeezing of a Two-Level Atom Interacting with Two-Mode Coherent Fields

Xiaojuan Liu, Mao-Fa Fang

From a quantum information point of view we investigate the entropy squeezing properties for a two-level atom interacting with the two-mode coherent fields via the two-photon transition. We discuss the influences of the initial state of the system on the atomic information entropy squeezing. Our results show that the squeezed component number, squeezed direction, and time of the information entropy squeezing can be controlled by choosing atomic distribution angle, the relative phase between the atom and the two-mode field, and the difference of the average photon number of the two field modes, respectively. Quantum information entropy is a remarkable precision measure for the atomic squeezing.

Communications in Theoretical Physics•Jul 15, 2004•7 citations

A Study on Quantum Entanglement Between Two Modes in the System of One Moving Atom Interacting with the Two-Mode Squeezing Vacuum Fields

Yang Rui-fang

The quantum entanglement properties of the two-mode squeezing vacuum field interacting with the atomic motion via two-photon transition were studied based on quantum theory.The influences of atomic motion and the field structure on the quantum entanglement were investigated as the initial state of atom is in the excited state.The results showed that the degree of entanglement between two mode vacuum fields is influenced by the values of velocity of the atomic motion and the structure of the field-mode,but the periodic evolution of the entanglement properties cannot be destroyed.

Neimenggu Shi-da xuebao. Zhexue shehui kexue hanwen ban•Jan 1, 2007•0 citations
The information entropy squeezing properties of the atom in motion interacting with the two-mode squeezing vacuum field via two-photon transition are studied by means of quantum theory.The influences of the velocity of atomic motion,the field structure and the parameter of squeezing field on the information entropy squeezing properties of the atom are investigated as the initial atom is in any state.The results indicate that the value of squeezed component of the atomic dipole,squeezed frequency,amplitude and squeezed direction of the atomic information entropy can be controlled by choosing the atomic initial state,the velocity of atomic motion,the field structure and the squeezing factor of field and the squeezing phase angle of the field,respectively.In the longer time,squeezing effects of the atom in motion can be obtained by choosing the system parameters.The mixing degree of atomic initial state has no influence on the entropy squeezing of the atom in motion.
The information entropy squeezing properties of the atom in motion interacting with the binomial states field via single photon transition are studied by means of quantum theory.The influences of the parameter of light field on the information entropy squeezing properties of the atom are investigated as the initial atom is in any state.The results indicate that the value of squeezed component of the atomic dipole,amplitude,squeezed time and squeezed direction of the atomic information entropy can be controlled by choosing the atomic initial state,the field structure parameter,the velocity of atomic motion.It is shown that the moving atom may exhibit the long time squeezing effect for some parameters.
From the quantum information point of view we investigate the entropy squeezing properties of a two_level atom with arbitrary initial state interacting with the coherent field via the two_photon process. The influence of the initial state of the system on the atomic information entropy squeezing is discussed. The numerical results obtained from the uncertainly relation of quantum information entropy are compared with those obtained from the uncertainly relation of Heisenberg. It is shown that the number of squeezed component of the atomic dipole, squeezed frequency, squeezed amplitude and squeezed direction of the atomic information entropy squeezing can be controlled by choosing the initial atomic distribution angle, the atomic mixing degree and the relative phase of the field mode, respectively. Quantum information entropy is a remarkable precise measure for the atomic squeezing.
The entropy evolution properties of field in the system of two-mode squeezing vacuum field interacting with the atomic motion are studied by means of quantum theory.The influences of atomic motion and the field structure in different initial states are discussed emphatically.The results show that the field entropy is determined by the velocity of the atomic motion and the parameter of the field mode structure through time parameter sin~2(epgt/2).The atomic motion and the parameter of the field mode structure lead to additional vibration entropy.
From a quantum information point of view we investigate the entropy squeezing properties for a two-level atom interacting with the two-mode coherent fields via the two-photon transition. We discuss the influences of the initial state of the system on the atomic information entropy squeezing. Our results show that the squeezed component number,squeezed direction, and time of the information entropy squeezing can be controlled by choosing atomic distribution angle,the relative phase between the atom and the two-mode field, and the difference of the average photon number of the two field modes, respectively. Quantum information entropy is a remarkable precision measure for the atomic squeezing.
From a quantum information point of view we investigate the entropy squeezing properties for a two-level atom interacting with the two-mode coherent fields via the two-photon transition. We discuss the influences of the initial state of the system on the atomic information entropy squeezing. Our results show that the squeezed component number, squeezed direction, and time of the information entropy squeezing can be controlled by choosing atomic distribution angle, the relative phase between the atom and the two-mode field, and the difference of the average photon number of the two field modes, respectively. Quantum information entropy is a remarkable precision measure for the atomic squeezing.
The quantum entanglement properties of the two-mode squeezing vacuum field interacting with the atomic motion via two-photon transition were studied based on quantum theory.The influences of atomic motion and the field structure on the quantum entanglement were investigated as the initial state of atom is in the excited state.The results showed that the degree of entanglement between two mode vacuum fields is influenced by the values of velocity of the atomic motion and the structure of the field-mode,but the periodic evolution of the entanglement properties cannot be destroyed.