| 光场与V型三能级原子依赖强度耦合系统场熵的演化特性 |
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| 引用本文： | 黄春佳,贺慧勇,孔凡志,方家元.光场与V型三能级原子依赖强度耦合系统场熵的演化特性[J].物理学报,2004,53(8):2539-2543. |
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| 作者姓名： | 黄春佳 贺慧勇 孔凡志 方家元 |
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| 作者单位： | 长沙理工大学物理与电子科学系, 长沙 410077;长沙理工大学物理与电子科学系, 长沙 410077;长沙理工大学物理与电子科学系, 长沙 410077;长沙理工大学物理与电子科学系, 长沙 410077 |
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| 基金项目： | 湖南省教育厅科研基金(批准号：03A003)资助的课题. |
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| 摘 要： | 研究了光场与V型三能级原子依赖强度耦合系统场熵的演化特性,讨论了单光子跃迁失谐量和初始光子数对场熵演化的影响. 研究结果表明,当失谐量比较小且初始光场较弱时,场熵的时间演化行为与单光子Jaynes-Cummings模型相似; 当失谐量足够大或初始光场足够强时,场熵的时间演化表现出类似于双光子Jaynes-Cummings模型中场熵演化的周期性.
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| 关 键 词： | 单模辐射场 V型三能级原子 依赖强度耦合 场熵演化 |
Evolution of the entropy of light field interacting with the V-type three-level atom via intensity-dependent coupling |
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| Huang Chun-Ji,He Hui-Yong,Kong Fan-Zhi and Fang Jia-Yuan.Evolution of the entropy of light field interacting with the V-type three-level atom via intensity-dependent coupling[J].Acta Physica Sinica,2004,53(8):2539-2543. |
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| Authors: | Huang Chun-Ji He Hui-Yong Kong Fan-Zhi and Fang Jia-Yuan |
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| Abstract: | 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 |
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| Keywords: | single_mode light field V_type three-level atom intensity_dependent coupling field entropy evolution |
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