| 类Kerr介质中双模SU(1,1)相干态场与Λ型三能级原子相互作用的量子统计性质 |
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| 引用本文： | 刘小青,谢芳森.类Kerr介质中双模SU(1,1)相干态场与Λ型三能级原子相互作用的量子统计性质[J].光子学报,2002,31(10):1178-1183. |
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| 作者姓名： | 刘小青 谢芳森 |
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| 作者单位： | 江西师范大学物理与通信电子学院 南昌330027
(刘小青)，江西师范大学物理与通信电子学院 南昌330027(谢芳森) |
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| 摘 要： | 导出了类Kerr介质中双模SU(1,1)相干态场与Λ型三能级原子相互作用系统的态函数,研究了Kerr效应对Λ型三能级原子布居概率、双模SU(1,1)相干态场的互关联函数、Cauchy-Schwartz不等式及二阶相干度的影响.结果表明:Kerr效应使原子与光场的耦合减弱,原子布居的崩塌与复苏的周期缩短;在初始光场较弱和较强两种情况下,类Kerr介质对双模SU(1,1)相干态场两模间的相关性、相关程度以及光子的聚束与反聚束效应产生的作用有明显的区别.
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| 关 键 词： | 双模SU(1 1)相干态场 Λ型三能级原子 类Kerr介质 Cauchy-Schwartz不等式 双模互关联函数 |
| 收稿时间： | 2001/11/26 |
| 修稿时间： | 2001年11月26 |
THE QUANTUM STATISTICAL PROPERTIES IN THE SYSTEM OF TWO-MODE SU(1,1) COHERENT STATES INTERACTING WITH THE Λ-TYPE THERR-LEVEL ATOM ADDED KERR-LIKE-MEDIUM |
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| Liu Xiaoqing,Xie Fangsen Institute of Physics and Communication & Electronics,Jiangxi Normal University,Nanchang,Jiangxi,China.THE QUANTUM STATISTICAL PROPERTIES IN THE SYSTEM OF TWO-MODE SU(1,1) COHERENT STATES INTERACTING WITH THE Λ-TYPE THERR-LEVEL ATOM ADDED KERR-LIKE-MEDIUM[J].Acta Photonica Sinica,2002,31(10):1178-1183. |
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| Authors: | Liu Xiaoqing Xie Fangsen Institute of Physics and Communication & Electronics Jiangxi Normal University Nanchang Jiangxi China |
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| Institution: | Liu Xiaoqing,Xie Fangsen Institute of Physics and Communication & Electronics,Jiangxi Normal University,Nanchang,Jiangxi,China 330027 |
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| Abstract: | The state function for the interaction of a Λ-type three-level atom with two-mode SU(1,1) coherent states in a Kerr-like medium is derived.By using the state function it is studied that the influence of the Kerr effect on the Λ-type three-level atomic occupation probabilities,the two-mode intensity correlation function,the Cauchy-Schwartz inequality,and the second-order correlation function for each mode.The results indicate that the Kerr effect weakens the coupling of the field-atom and shortens the period of quantum collapses and revivals of the atomic level occupation.Kerr effects on the properties of the correlation,on the correlation intensity bewteen the two-mode,on the photon number distribution and on the bunching or antibunching effect of the two-mode SU(1,1) coherent states produce obviously different characters when the initial intensity of the light field is changed. |
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| Keywords: | Two-mode SU(1 1) coherent states Λ-type three-level atom Kerr-like medium Cauchy-Schwartz inequality Two-mode intensity correlation function |
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