CLASSICAL AREAS OF PHENOMENOLOGY |
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Mechanical effects of light on the $\Xi$-type three-level atom in a high-finesse optical cavity |
Liu Li-Wei(刘利伟)a),Tan Lei(谭磊)a)b)†,and Huang Gang(黄刚)a) |
a Institute of Theoretical Physics, Lanzhou University, Lanzhou 730070, China; b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
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Abstract A theoretical study is carried out for the modification and implication of the effect on the $\Xi$-type three level atom in a high-finesse optical cavity driven by light field including spontaneous emission and the cavity decay. Analytic expressions for the dipole force, the friction force, the optical potentials and the friction coefficient are obtained. Then the numerical and graphical methods are used to investigate the friction coefficient with the controlling parameters. It is shown that the friction coefficient is strongly dependent on the controlling parameters. The cooling rate can increase by one order of magnitude more than that of a two-level atomic system. The reason can be given using the dressed states and the Sisyphus cooling mechanism, which would stimulate further experimental investigations.
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Received: 29 December 2009
Revised: 07 September 2010
Accepted manuscript online:
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PACS:
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42.50.-p
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(Quantum optics)
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37.30.+i
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(Atoms, molecules, andions incavities)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10704031), the National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China (Grant No. J0630313), the Fundamental Research Fund for Physics and Mathematics of Lanzhou University, China (Grant No. Lzu05001), and the Natural Science Foundation of Gansu Province, China (Grant No. 3ZS061-A25-035). |
Cite this article:
Liu Li-Wei(刘利伟), Tan Lei(谭磊), and Huang Gang(黄刚) Mechanical effects of light on the $\Xi$-type three-level atom in a high-finesse optical cavity 2011 Chin. Phys. B 20 014205
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