In this paper, we study quantum statistical properties of atoms and photons in interaction of 7Li-atornic Bose-Einstein condensate in the ground-state hyperfine sublevels with laser fields. We investigate not only quantum conversions between atoms in the condensate and photons in the quantized laser field, but also transfer of nonclassical cha acteristics of atoms and photons between input states and output states when the atom field is initially in a number state and the quantized laser field is in the even coherent state and the odd coherent state, respectively. We find various conditions to realize these quantum conversions. We also study atom-photon quantum correlations and their input-output conversions. It is indicated that there are atom-field nonclassical correlations.
Abstract
In this paper, we study quantum statistical properties of atoms and photons in interaction of 7Li-atornic Bose-Einstein condensate in the ground-state hyperfine sublevels with laser fields. We investigate not only quantum conversions between atoms in the condensate and photons in the quantized laser field, but also transfer of nonclassical cha acteristics of atoms and photons between input states and output states when the atom field is initially in a number state and the quantized laser field is in the even coherent state and the odd coherent state, respectively. We find various conditions to realize these quantum conversions. We also study atom-photon quantum correlations and their input-output conversions. It is indicated that there are atom-field nonclassical correlations.
关键词
atomic Bose-Einstein condensate /
quantized laser field
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Key words
atomic Bose-Einstein condensate /
quantized laser field
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参考文献
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脚注
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基金
The project supported in part by National Natural Science Foundation of China, the Natural Science Fouriaation of Hunan Province and special project of the NSF Through The Institute of Theoretical Physics, Academia Sinica
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