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

Photonic Bunching or Antibunching Effect of SU(1,1) CoherentStates Interacting Non-resonantly with a Λ-type Three-level Atom

Tan Zhen-xing

Published Jan 1, 2004• 0 citations
OpenAlex

Abstract

In the system of SU(1,1) coherent states interacting non-resonantly with a Λ-type three-level atom, the influences of detuning, Kerr medium and initial atomic state on the second-order coherence degree are investigated. The results show that the influence of Kerr medium is unobvious on the second-order coherence degree, that the detuning makes the influence of initial atomic state on the mode 1 weak and on the mode 2 strong, and that the initial atomic state effects on the second-order coherence degree for each mode, but the effects on the mode 1 are stronger than on the mode 2.

Related papers

Quantum statistical properties of the light field in the interaction of the two-mode SU(1,1) coherent states with four-level atom added Kerr-like medium

Xie Fang-sen

The state function of the two-mode SU(1,1) coherent states field interacting with four-level atom added Kerr-like medium was derived. By using the state function it was studied that the influence of the Kerr effect and the initial light field intensity on the two-mode intensity correlation function, the Cauchy-Schwartz inequality, and the second-order correlation function for each mode. The results indicate that the influences of Kerr effects on the properties of the correlation on the correlation intensity between the two-mode on the bunching or antibunching effect of the two-mode SU(1,1) coherent states are obviously related to the initial intensity of the light field.

Chinese Journal of Quantum Electronics•Jan 1, 2004•0 citations

Quantum Properties of the Field in the System of Coupled V-type Three-level Atoms Interacting with Coherent Field in Kerr Medium

李可 Li Ke, 令维军 Ling Weijun

The quantum properties of the light field in the system of two coupled V-type atoms interacting with coherent field in Kerr medium were studied.The solution describing the dynamics process of the system was gained by means of the coupled Tavis-Cummings model in quantum optics.Influences of the initial state,the detuning of the field,the coupling strength of dipole-dipole interaction between atoms and Kerr coefficient on the second-order correlation function and the squeezing parameter of the field were discussed.Numerical calculation results show: when the average photon number of the field in the initial state is smaller,the field exhibits apparent quantum effect;when the probability amplitude of the excited states of the atoms in the initial state changing from small to large,the anti-bunching effect of the field becomes more obvious,but the squeezing depth increase at first and then decrease;the detuning changing create small influence on the quantum properties of the field,its changing only change the oscillating period of the second-correlation function and the squeezing parameter of the field;the increasing of the coupling strength between the atoms weaken the anti-bunching effect of the field and make the squeezing depth become shallow;the increasing of Kerr coefficient enhances the anti-bunching effect of the field,but makes the squeezing depth become shallow.

ACTA PHOTONICA SINICA•Jan 1, 2011•0 citations

Antibunching effect of the field in the system of two-mode entangled coherent states interacting with a Λ-type three-level atom

Qiu Chang-dong

The antibunching effect of the field in the system of two-mode entangled coherent states interacting with a Λ-type three-level atom was investigated by means of numerical calculation.The influences of the degree of entanglement of two Λ-mode entangled coherent state optics field and mean photon numbers of two-mode optics field on antibunching effect were discussed.The results showed that antibunching effect strengthening with increasing of the the degree of entanglement of two-mode entangled coherent state optics field and weakening with increasing of mean photon numbers of two-mode entangled coherent state optics field.

Journal of Zhejiang Normal University•Jan 1, 2008•0 citations

INTERACTION OF TWO-MODE SU（1，1） COHERENT STATES WITH THE V-TYPE THREE-LEVEL ATOM IN A KERR-LIKE-MEDIUM

LAI YUN-ZHONG, Liang Jiu-Qing, (1)山西大学理论物理研究所; (2)太原重型机械学院基础部

We first derive the state vector of a V-type three-level atom interacting with two-mode SU (1,1) coherent states in a Kerr-like medium. It is shown by numericl calculations that the Kerr effect results indifferent characters of the Rabi oscillation, as compared with the two-levelatom case, while the correlation of the two-mode coherent states is less affected by the the Kerr medium. We also discuss the influence of Kerr effect on the Cauchy-Schwartz inequality.

Acta Physica Sinica•Jan 1, 1997•2 citations

QUANTUM STATISTIC PROPERTIES OF NON-RESONANCE INTERACTION BETWEEN A THREE-LEVEL ATOM AND TWO MODE CAVITIES WITH KERR MEDIUM

TAO XIANG-YANG, LIU JIN-MING, Liu San-qiu +2 more

We have studied the non-resonance interaction between a V-type three-level atom and two-mode cavity with Kerr medium. The results show that if the detunings of the two-mode cavities are equal (δ1＝δ2), when initial strength ξ of the two cavities remains unchanged and photon difference q of the two mode cavities is decreased, the non-classical coherence degree between the two mode cavities is increased; when q remains unchanged and ξ is increased, the non-classical coherence degree between the two mode cavities is decreased. When Δδ=|δ2-δ1|=0 and q and ξ remain unchanged, the non-classical coherence degree is decreased with the increase of Kerr effect, and the value of Δδ has an importance influence on the non-classical coherence degree. The results also show that when δ1=δ2, the second-order coherence degree of the cavity 1 shows g211222222>1. On the other hand, the amplitude evolution of the second-order coherence degree of two-mode cavity is decreased due to the influence of Kerr effect.

Acta Physica Sinica•Jan 1, 2000•1 citation

Squeeze Property of the Atom in the System of Non-interrelated Two-mode Coherent States Field with the Λ-type Three-level Atom in a Kerr-like Medium

Lilong Tan

The method of rotating-wave approximation is used to analyze the evolvement process of systematic state vector of the Λ-type three-level atom interacting with initially uncorrelated two-mode coherent states of arbitrary detuning in a cavity filled with Kerr-like medium.Two kinds of squeezed coherent states and their applications are narrated.Calculation formulae of photon amount squeeze and phase squeeze are offered.Evolvement process of squeezed photon is protracted and squeeze property affected by Kerr medium is discussed.It is shown by numerical calculation that strong Kerr medium induces periodic fluctuation of evolvement process of squeezed photon,and the character of photon amount squeeze is poor if resonance has severe detuning.

Acta Sinica Quantum Optica•Jan 1, 2009•0 citations
In the system of SU(1,1) coherent states interacting non-resonantly with a Λ-type three-level atom, the influences of detuning, Kerr medium and initial atomic state on the second-order coherence degree are investigated. The results show that the influence of Kerr medium is unobvious on the second-order coherence degree, that the detuning makes the influence of initial atomic state on the mode 1 weak and on the mode 2 strong, and that the initial atomic state effects on the second-order coherence degree for each mode, but the effects on the mode 1 are stronger than on the mode 2.
The state function of the two-mode SU(1,1) coherent states field interacting with four-level atom added Kerr-like medium was derived. By using the state function it was studied that the influence of the Kerr effect and the initial light field intensity on the two-mode intensity correlation function, the Cauchy-Schwartz inequality, and the second-order correlation function for each mode. The results indicate that the influences of Kerr effects on the properties of the correlation on the correlation intensity between the two-mode on the bunching or antibunching effect of the two-mode SU(1,1) coherent states are obviously related to the initial intensity of the light field.
The quantum properties of the light field in the system of two coupled V-type atoms interacting with coherent field in Kerr medium were studied.The solution describing the dynamics process of the system was gained by means of the coupled Tavis-Cummings model in quantum optics.Influences of the initial state,the detuning of the field,the coupling strength of dipole-dipole interaction between atoms and Kerr coefficient on the second-order correlation function and the squeezing parameter of the field were discussed.Numerical calculation results show: when the average photon number of the field in the initial state is smaller,the field exhibits apparent quantum effect;when the probability amplitude of the excited states of the atoms in the initial state changing from small to large,the anti-bunching effect of the field becomes more obvious,but the squeezing depth increase at first and then decrease;the detuning changing create small influence on the quantum properties of the field,its changing only change the oscillating period of the second-correlation function and the squeezing parameter of the field;the increasing of the coupling strength between the atoms weaken the anti-bunching effect of the field and make the squeezing depth become shallow;the increasing of Kerr coefficient enhances the anti-bunching effect of the field,but makes the squeezing depth become shallow.
The antibunching effect of the field in the system of two-mode entangled coherent states interacting with a Λ-type three-level atom was investigated by means of numerical calculation.The influences of the degree of entanglement of two Λ-mode entangled coherent state optics field and mean photon numbers of two-mode optics field on antibunching effect were discussed.The results showed that antibunching effect strengthening with increasing of the the degree of entanglement of two-mode entangled coherent state optics field and weakening with increasing of mean photon numbers of two-mode entangled coherent state optics field.
We have studied the non-resonance interaction between a V-type three-level atom and two-mode cavity with Kerr medium. The results show that if the detunings of the two-mode cavities are equal (δ1＝δ2), when initial strength ξ of the two cavities remains unchanged and photon difference q of the two mode cavities is decreased, the non-classical coherence degree between the two mode cavities is increased; when q remains unchanged and ξ is increased, the non-classical coherence degree between the two mode cavities is decreased. When Δδ=|δ2-δ1|=0 and q and ξ remain unchanged, the non-classical coherence degree is decreased with the increase of Kerr effect, and the value of Δδ has an importance influence on the non-classical coherence degree. The results also show that when δ1=δ2, the second-order coherence degree of the cavity 1 shows g211222222>1. On the other hand, the amplitude evolution of the second-order coherence degree of two-mode cavity is decreased due to the influence of Kerr effect.
The method of rotating-wave approximation is used to analyze the evolvement process of systematic state vector of the Λ-type three-level atom interacting with initially uncorrelated two-mode coherent states of arbitrary detuning in a cavity filled with Kerr-like medium.Two kinds of squeezed coherent states and their applications are narrated.Calculation formulae of photon amount squeeze and phase squeeze are offered.Evolvement process of squeezed photon is protracted and squeeze property affected by Kerr medium is discussed.It is shown by numerical calculation that strong Kerr medium induces periodic fluctuation of evolvement process of squeezed photon,and the character of photon amount squeeze is poor if resonance has severe detuning.