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Nonclassical Bose-Einstein Condensate |
| ZENG Heping;LIN Fucheng |
| Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai 201800 |
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| Cite this article: |
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ZENG Heping, LIN Fucheng 1995 Chin. Phys. Lett. 12 593-596 |
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Abstract A scheme for the generation of a nonclassical Bose-Einstein condensate is proposed in a Jg = 1 →Je = 0 system where ultracold atoms are populated in one ground-state sublevel |g_〉 and form a Bose-Einstein condensate. By coupling the condensate to copropagating classical (σ-) and quantum (σ+) non-resonant travelling-wave laser fields, effective two-photon excitations between two ground-state sublevels |g_〉and |g+〉create a new condensate in |g+〉. For an appropriate selection of the interaction time and atom-field coupling strengths, the quantum features of the quantized laser field, which may be prepared in a certain nonclassical state, can be exchanged with those of the quantum density field of the generated condensate.
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42.50.Dv
05.30.Jp
42.50.Vk
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Published: 01 October 1995
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