与双模SU(2)相干场相互作用的∧型三能级原子系统中光场位相特性和原子的相干捕获 |
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引用本文: | 郭红,彭金生. 与双模SU(2)相干场相互作用的∧型三能级原子系统中光场位相特性和原子的相干捕获[J]. 量子电子学报, 2001, 18(3): 255-260 |
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作者姓名: | 郭红 彭金生 |
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作者单位: | 华中师范大学物理系, |
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基金项目: | 国家自然科学基金资助课题(19774024). |
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摘 要: | 本文研究了与双模SU(2)相干场相互作用的∧型三能级原子系统中光场位相的动态特性,证明了光场每个模的位相及两个模的位相和均保持随机分布,给出了光场两个模位相差的平均值及方差表达式,探讨了系统 初态及原子-光场耦合强度对光场两个模位相差涨落的影响,并揭示了在适当的条件下,系统呈现原子的相干捕获现象。
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关 键 词: | 光场 位相特性 三能级原子系统 相干捕获 双模相干场 |
文章编号: | 1007-5461(2001)03-0255-06 |
收稿时间: | 2000-02-21 |
修稿时间: | 2000-02-21 |
Phase Properties of the Field and Atomic Coherent Trappingin a System of A-type Three-level Atom Interactingwith Two-mode SU(2) Coherent Field |
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Abstract: | In this paper,the phase properties of two-mode SU(2) coherent field interacting with A-type three-level atom are investigated. We find that single-mode phase and the sum of the two-mode phase are all randomly distributed. The expressions of average value and variance of the phase difference are presented. The effects of atomic initial state and the atom-field coupling strengths on the variance of the phase difference are examined. That the atomic coherent trapping will be taken place under an appropriate condition is verified. |
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Keywords: | phase sum and difference two-mode SU(2) coherent field coherent trapping |
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