Quantum-mechanical counterpart of nonlinear optics
Quantum-mechanical counterpart of nonlinear optics
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DOI：
10.1103/physreva.55.4438
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发表时间：
1997-05
影响因子：
2.9
通讯作者：
S. Wallentowitz;W. Vogel
中科院分区：
文献类型：
--
作者：
S. Wallentowitz;W. Vogel
拉曼型激光激发被困原子允许实现量子力学对应的非线性光学现象，如克尔型非线性，参量放大和多模混合。此外，原子波函数与激光波的干涉产生了巨大的非线性。它们导致相空间的分区伴随着在相邻的相空间区域中的时间演化的显著不同的动作。例如，运动量子态的非线性修正相干“位移”可能会引起强振幅压缩和量子干涉。
Raman-type laser excitation of a trapped atom allows one to realize the quantum-mechanical counterpart of phenomena of nonlinear optics, such as Kerr-type nonlinearities, parametric amplification, and multimode mixing. Additionally, huge nonlinearities emerge from the interference of the atomic wave function with the laser waves. They lead to a partitioning of the phase space accompanied by a significantly different action of the time evolution in neighboring phase-space zones. For example, a nonlinearly modified coherent 'displacement' of the motional quantum state may induce strong amplitude squeezing and quantum interferences.