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Stochastic quantum molecular dynamics

机译:随机量子分子动力学

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An approach to correlated dynamics of quantum nuclei and electrons both in dynamical interaction with external environments is presented. This stochastic quantum molecular dynamics rests on a theorem that establishes a one-to-one correspondence between the total ensemble-averaged current density of interacting nuclei and electrons and a given external vector potential. The theory allows for a first-principles description of phenomena previously inaccessible via standard quantum molecular dynamics such as electronic and nuclear relaxation in photochemistry, dissipative correlated electron-ion dynamics in intense laser fields, nuclear dephasing, etc. As a demonstration of the approach, we discuss the rotational relaxation of 4-(N,N-dimethylamino)benzonitrile in a uniform bath in the limit of classical nuclei.
机译:提出了一种与外部环境动态相互作用的量子核和电子相关动力学的方法。此随机量子分子动力学基于一个定理,该定理在相互作用核和电子的总集合平均电流密度与给定的外部矢量电势之间建立了一对一的对应关系。该理论允许对以前通过标准量子分子动力学(例如光化学中的电子和核弛豫,强激光场中的耗散相关电子离子动力学,核移相等)无法访问的现象进行第一原理描述。作为该方法的证明,我们讨论了在经典原子核的极限下,均匀浴中4-(N,N-二甲基氨基)苄腈的旋转弛豫。

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