Atom localization in a four-level alkaline earth atomic system |
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| Authors: | Luling Jin Dongchao Cheng Hui Sun Shiqi Jin |
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| Affiliation: | 1. State Key Laboratory of High Field Laser Physics , Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences , Shanghai 201800, China;2. Graduate University of Chinese Academy of Sciences , China;3. State Key Laboratory of High Field Laser Physics , Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences , Shanghai 201800, China |
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| Abstract: | We propose an atom localization scheme for a four-level alkaline earth atom via a classical standing-wave field, and give the analytical expressions of the localization peak positions as well as the widths versus the parameters of the optical fields. We show that the probability of finding the atom at a particular position can be increased from 1/4 to 1/3 or 1/2 by adjusting the detuning of the probe field and the Rabi frequencies of the optical fields. Furthermore, the localization precision can be dramatically enhanced by increasing the intensity of the standing-wave field or decreasing the detuning of the probe field. The analytical results are quite accordant to the numerical solutions. |
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