A scheme for detecting the atom-field coupling constant in the Dicke superradiation regime using hybrid cavity optomechanical system.
A scheme for detecting the atom-field coupling constant in the Dicke superradiation regime using hybrid cavity optomechanical system.
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DOI：
10.1364/oe.20.010106
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发表时间：
2012-04
期刊：
影响因子：
3.8
通讯作者：
Yueming Wang;B. Liu;Jinling Lian;Jiu‐Qing Liang
中科院分区：
文献类型：
--
作者：
Yueming Wang;B. Liu;Jinling Lian;Jiu‐Qing Liang
提出了一种基于原子气体辅助的混合腔光机系统测量迪凯超辐射区原子-光场耦合常数的方案。利用自旋相干态表象解析地得到了迪凯模型的临界行为。在不考虑腔场动力学的情况下，得到了给定原子数时，可动镜的稳定位置与原子-场耦合常数之间一一对应的解析公式。因此，通过测量可动镜的稳定位置，可以得到原子与光场的耦合常数，这是腔光力学的另一个效应。
We proposed a scheme for detecting the atom-field coupling constant in the Dicke superradiation regime based on a hybrid cavity optomechanical system assisted by an atomic gas. The critical behavior of the Dicke model was obtained analytically using the spin-coherent-state representation. Without regard to the dynamics of cavity field an analytical formula of one-to-one correspondence between movable mirror's steady position and atom-field coupling constant for a given number of atoms is obtained. Thus the atom-field coupling constant can be probed by measuring the movable mirror's steady position, which is another effect of the cavity optomechanics.