| 与双光子场作用的三能级原子中粒子布居数的崩塌与回复 |
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| 引用本文： | 李高翔,彭金生. 与双光子场作用的三能级原子中粒子布居数的崩塌与回复[J]. 华中师范大学学报(自然科学版), 1993, 32(2): 0-0 |
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| 作者姓名： | 李高翔 彭金生 |
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| 作者单位： | 华中师范大学物理系(李高翔)，华中师范大学物理系(彭金生) |
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| 摘 要： | 利用非相对论性量子电动力学理论,研究了与双光子场作用的级联三能级原子的粒子布居数的时间演化规律,证明了粒子布居数呈现出周期性崩塌与回复效应,解释了在不同条件下系统表现出不同的崩塌与回复性质的原因,指出了中间能级的作用。
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| 关 键 词： | 三级级原子 布居数 崩塌与回复 双光子激光 |
| 收稿时间： | 1993-02-25 |
COLLAPSES AND REVIVALS OF ATOMIC POPULATIONS IN A THREE-LEVER ATOM INTERACTING WITH A TWO-PHOTON FIELD |
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| Li Gaoxiang Peng Jinsheng. COLLAPSES AND REVIVALS OF ATOMIC POPULATIONS IN A THREE-LEVER ATOM INTERACTING WITH A TWO-PHOTON FIELD[J]. Journal of Central China Normal University(Natural Sciences), 1993, 32(2): 0-0 |
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| Authors: | Li Gaoxiang Peng Jinsheng |
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| Abstract: | In this paper, we have investigated the time evolution of the atomic populations of a cascade three-level atom interacting with the two-photon field by means of non-relativestic QED. We verified that the expectation values of the atomic populations exhibit the periodic collapse and revival effect. The reason that the periodic collapse and revival effects of the photon-atom coupling system have different properities in different conditions is also discussed, and the role of the interatomic state is pointed out. |
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| Keywords: | three-level atom population collapse and reviavl two-photon laser |
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