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

Acta Physica Sinica

INFLUENCE OF A VIRTUAL PHOTON FIELD ON THE STATISTIC PROPERTIES OF PHOTONS IN A SYSTEM OF TWO-MODE SQUEEZED VACCUM FIELD INTERACTING WITH ATOMS

HUANG CHUN-JIA, Jiangfan Li, Ming Tao Zhou, Fang Jia-Yuan, 长沙电力学院物理与信息工程系,长沙410077

Published Jan 1, 2001• 1 citation
Publisher

Abstract

The statistic properties of photons in a system of two-mode squeezed vacuum field interacting with a two-level atom are studied without the rotating-wave approximation by means of quantum theory, and the influence of the virtual-photon process on the statistic properties of photons is discussed emphatically. The results obtained using a numerical method indicate that the influence of the virtual-photon process on the statistic properties of photons qives rise to quantum chaos, that is related to the initial state parameters of the system.

DOI
10.7498/aps.50.1920

Related papers

Influence of a virtual photon field on the entangle properties in a system of two mode squeezed vaccum field interacting with atoms

Yongping Li

The entangle properties in a system of two mode squeezed vacuum field interacting with a two level atom are studied without the rotating wave approximation by means of quant um theory, and the influences of the virtual-photon process on the entangle properties are discuss ed emphatically.

Chinese journal of atomic and molecular physics•Jan 1, 2005•0 citations

INFLUENCE OF THE VIRTUAL PHOTON FIELD ON THE ATOMIC QUANTUM CHARACTER IN TWO-MODE SQUEEZING VACUUM FIELD

HUANG CHUN-JIA, Ming Tao Zhou, Jiangfan Li +4 more

We have investigated in the time-evolution and the squeezing character of atomic operators in a system of two-mode squeezed vacuum field interacting with a two-level atom without the rotating-wave approximation by means of quantum theory.The results obtained using the numerical method indicate that the influence of the virtual-photon field on the atomic quantum character is mainly the cause for quantum chaos which is related to the quantum character of the system itself.

Acta Physica Sinica•Jan 1, 2000•0 citations

Statistic properties of photon in the system of two coupling atoms interacting with two-mode squeezed vacuum field in Kerr medium

Fang Jia-Yuan, Huang Chun-Jia, Huang Zu-hong +2 more

The statistic properties of photons in the system of two-mode squeezing vacuum field interacting with two coupling atoms in Kerr medium are studied by means of quantum theory.The influences of coupling constant χ, initial squeezed parameter r and the atomic initial state are discussed. The results obtained by means of numerical method show that the photon bunching and anti-bunching appear alternately, and the correlation of the two modes of light is both positive and non-classical. The periodical collapse-revival phenomenon of the time evolution of the second-order coherence degree of the two-mode field appears due to the influence of the Kerr effect. The periods of the collapse-revival become short up to disappearance with increasing Kerr effect.

Acta Physica Sinica•Jan 1, 2004•0 citations

Influence of the virtual photon field on the squeezing properties of light field in the system of binomial state field interacting with atomic Bose-Einstein condensate

Zhao Jian-Gang, Sun Chang-Yong, Liang Bao-Long +2 more

The squeezing properties of binomial state field interacting with Bose-Einstein condensate of two-level atoms are investigated within and without rotating-wave approximation by means of quantum theory. The influences of atomic eigenfrequency, the coupling constant between light field and atoms，the parameter of light field and the virtual photon field on squeezing properties have been discussed. The results show that two quadrature components can be squeezed periodically, and the duration of squeezing light has something to do with atomic eigenfrequency ω, and the degree of squeezing with the parameter of the binomial states field η and the virtual photon field. The frequency of light fluctuations collapse and revival is determined by the coupling constant between light field and atoms.

Acta Physica Sinica•Jan 1, 2009•2 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

Influence of the virtual photon field on the squeezing properties of atom laser

Zhao Jian-Gang, Sun Chang-Yong, Meng Xiang-Guo +2 more

The squeezing properties of atom laser are investigated with and without rotating-wave approximation by means of quantum theory in the system of optical field interacting with Bose-Einstein condensate of two-level atoms. The influences of the atomic eigenfrequency, the interaction intensity between optical field and atoms，the initial squeezing factor of optical field and the virtual photon field on the squeezing properties are discussed. The results show that two quadrature components of atom laser can be squeezed periodically. The quantum Rabi frequency and the collapse and revival frequency of atom laser fluctuation depend on the atomic eigenfrequency and the interaction intensity between optical field and atoms respectively. When the initial squeezing factor of optical field increases and the virtual photon field is considered, the degree of squeezing of the atom laser also increases.

Acta Physica Sinica•Jan 1, 2009•3 citations
The statistic properties of photons in a system of two-mode squeezed vacuum field interacting with a two-level atom are studied without the rotating-wave approximation by means of quantum theory, and the influence of the virtual-photon process on the statistic properties of photons is discussed emphatically. The results obtained using a numerical method indicate that the influence of the virtual-photon process on the statistic properties of photons qives rise to quantum chaos, that is related to the initial state parameters of the system.
The statistic properties of photons in the system of two-mode squeezing vacuum field interacting with two coupling atoms in Kerr medium are studied by means of quantum theory.The influences of coupling constant χ, initial squeezed parameter r and the atomic initial state are discussed. The results obtained by means of numerical method show that the photon bunching and anti-bunching appear alternately, and the correlation of the two modes of light is both positive and non-classical. The periodical collapse-revival phenomenon of the time evolution of the second-order coherence degree of the two-mode field appears due to the influence of the Kerr effect. The periods of the collapse-revival become short up to disappearance with increasing Kerr effect.
The squeezing properties of binomial state field interacting with Bose-Einstein condensate of two-level atoms are investigated within and without rotating-wave approximation by means of quantum theory. The influences of atomic eigenfrequency, the coupling constant between light field and atoms，the parameter of light field and the virtual photon field on squeezing properties have been discussed. The results show that two quadrature components can be squeezed periodically, and the duration of squeezing light has something to do with atomic eigenfrequency ω, and the degree of squeezing with the parameter of the binomial states field η and the virtual photon field. The frequency of light fluctuations collapse and revival is determined by the coupling constant between light field and atoms.
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.
The squeezing properties of atom laser are investigated with and without rotating-wave approximation by means of quantum theory in the system of optical field interacting with Bose-Einstein condensate of two-level atoms. The influences of the atomic eigenfrequency, the interaction intensity between optical field and atoms，the initial squeezing factor of optical field and the virtual photon field on the squeezing properties are discussed. The results show that two quadrature components of atom laser can be squeezed periodically. The quantum Rabi frequency and the collapse and revival frequency of atom laser fluctuation depend on the atomic eigenfrequency and the interaction intensity between optical field and atoms respectively. When the initial squeezing factor of optical field increases and the virtual photon field is considered, the degree of squeezing of the atom laser also increases.