Statistical Physics of Bose-Einstein-Condensed Light in a Dye Microcavity
Statistical Physics of Bose-Einstein-Condensed Light in a Dye Microcavity
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DOI：
10.1103/physrevlett.108.160403
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发表时间：
2012-04-20
影响因子：
8.6
通讯作者：
Weitz, Martin
中科院分区：
文献类型：
--
作者：
Klaers, Jan;Schmitt, Julian;Weitz, Martin
我们从理论上分析了染料填充光学微腔热平衡中近轴光的温度行为。在低温下，光子气体发生玻色-爱因斯坦凝聚，腔基态的光子数相对于总光子数变得宏观。由于光子气体和染料分子库之间的大正则激发交换，预计该系统会出现凝聚态数异常大波动的状态，这在当前原子物理学玻色-爱因斯坦凝聚实验中未观察到。
We theoretically analyze the temperature behavior of paraxial light in thermal equilibrium with a dye-filled optical microcavity. At low temperatures the photon gas undergoes Bose-Einstein condensation, and the photon number in the cavity ground state becomes macroscopic with respect to the total photon number. Owing to a grand-canonical excitation exchange between the photon gas and the dye molecule reservoir, a regime with unusually large fluctuations of the condensate number is predicted for this system that is not observed in present atomic physics Bose-Einstein condensation experiments.