DYNAMIC EVOLUTION OF THE 2-PHOTON JAYNES-CUMMINGS MODEL IN A KERR-LIKE MEDIUM
DYNAMIC EVOLUTION OF THE 2-PHOTON JAYNES-CUMMINGS MODEL IN A KERR-LIKE MEDIUM
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DOI：
10.1103/physreva.45.5056
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发表时间：
1992-04-01
影响因子：
2.9
通讯作者：
PURI, RR
中科院分区：
文献类型：
--
作者：
JOSHI, A;PURI, RR
研究了腔中填充类Kerr介质时，原子双光子过程中粒子数反转中的反转-回复现象和准概率Q函数的时间演化.对于初始处于相干态的光场，给出了原子布居数反转的精确表达式。在高场近似下，得到了该表达式和Q函数的封闭形式。此外，已明确显示出抑制激发态衰减的趋势。本研究揭示了两个非线性过程同时发生对原子动力学的影响。
The collapse-and-revival phenomenon in the population inversion and the time evolution of the quasiprobability Q function of an atom undergoing a two-photon process are investigated when the cavity is supposed to be filled with a Kerr-like medium. An exact expression for the atomic population inversion has been given for a field initially in the coherent state. The closed form of this expression as well as that of the Q function are obtained under the high-field approximation. Also, the tendency toward inhibited decay of the excited state has been explicitly shown. This study reveals how the simultaneous occurrence of two nonlinear processes affects the atomic dynamics.