Quantum coherence in nonlinear optical processes: theory and possible application to control of chemical reaction and quantum computation
Quantum coherence in nonlinear optical processes: theory and possible application to control of chemical reaction and quantum computation
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DOI：
10.1016/s0022-2313(99)00210-0
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发表时间：
2000-05-01
影响因子：
3.6
通讯作者：
Cao, JS
中科院分区：
文献类型：
--
作者：
Cao, JS
非线性光学过程中的相位依赖性揭示了短激光脉冲的相位相干性与激光诱导的量子波包动力学之间的有趣相互作用，而这种相互作用在线性响应区域中是无法观察到的。本文通过三个例子演示了脉冲内量子相干性：用于电子布居总反转的分子 pi 脉冲、多光子吸收产率中意外的线性调频依赖性以及用于量子计算的退相干的主动控制。这些结果表明，量子相干性是分子系统动态控制的独特方法，这是其他方法无法实现的。 (C) 2000 年由 Elsevier Science B.V. 出版。保留所有权利。
Phase dependence in nonlinear optical processes reveals an intriguing interplay between the phase coherence of a short laser pulse and the laser-induced quantum wave-packet dynamics, which cannot be observed in the linear response regime. In this paper, the intra-pulse quantum coherence is demonstrated with three examples: molecular pi pulses for total inversion of electron population, unexpected chirp dependence in multi-photon absorption yield, and active control of decoherence for quantum computation. These results demonstrate that quantum coherence is a unique method in the dynamic control of molecular systems, which cannot be achieved otherwise. (C) 2000 Published by Elsevier Science B.V. All rights reserved.