| Time evolution of atomic inversion in a standing wave light field |
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| 作者姓名： | 殷雯 梁九卿 赖云忠 严启伟 |
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| 作者单位： | Institute of Theoretical Physics，Shanxi University，Taiyuan，Shanxi 030006 Institute of Physics，Academia Sinica，Beijing 100080，Institute of Theoretical Physics，Shanxi University，Taiyuan，Shanxi 030006，Institute of Theoretical Physics，Shanxi University，Taiyuan，Shanxi 030006 Institute of Physics，Academia Sinica，Beijing 100080，Institute of Physics，Academia Sinica，Beijing 100080 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant No． 10075302． |
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| 摘 要： | The interaction between an atomic beam of two-level atoms and a standing wave light field has been studied by the exact solution of a time-dependent quantum system developed recently. When the initial atomic state is choosen to be ground, we find that with the limit of zero detuning the atoms will oscillate between the upper and the lower levels with a decaying amplitude. The most interesting result obtained in this paper is when the initial atomic state is a particular superposition of the two levels, now the system does not oscillate at any time.
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Time evolution of atomic inversion in a standing wave light field |
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| Abstract: | The interaction between an atomic beam of two-level atoms and a standing wave light field has beenstudied by the exact solution of a time-dependent quantum system developed recently. When the initialatomic state is choosen to be ground, we find that with the limit of zero detuning the atoms will oscillatebetween the upper and the lower levels with a decaying amplitude. The most interesting result obtainedin this paper is when the initial atomic state is a particular superposition of the two levels, now the systemdoes not oscillate at any time. |
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