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arXiv quant-ph/0405125quant-ph
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平衡态BEC超辐射模型

Models for Equilibrium BEC Superradiance

Joseph V. Pule, Andre Verbeure, Valentin A. Zagrebnov

摘要:

最近的实验与超辐射玻色-爱因斯坦凝聚体(BEC)的动机,我们认为简单的微观模型严格描述的两个合作现象,BEC和辐射,在热力学平衡的干扰。平衡态下的结果证实了BEC超辐射光散射的存在:(a)平衡态下的超辐射只存在于一定的相变温度以下;(b)由于光与物质的相干耦合,存在超辐射和物质波(BEC)增强。

英文摘要:

Motivated by recent experiments with superradiant Bose-Einstein Condensate (BEC) we consider simple microscopic models describing rigorously the interference of the two cooperative phenomena, BEC and radiation, in thermodynamic equilibrium. Our resuts in equilibrium confirm the presence of the observed superradiant light scattering from BEC: (a) the equilibrium superradiance exists only below a certain transition temperature; (b) there is superradiance and matter-wave (BEC) enhancement due to the coherent coupling between light and matter.

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