Rotational Friction and Diffusion of Quantum Rotors.
Rotational Friction and Diffusion of Quantum Rotors.
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DOI：
10.1103/physrevlett.121.040401
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发表时间：
2017-12
影响因子：
8.6
通讯作者：
B. Stickler;B. Schrinski;K. Hornberger
中科院分区：
文献类型：
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作者：
B. Stickler;B. Schrinski;K. Hornberger
我们提出了描述与热环境接触的平面、线性和非对称转子的旋转退相干、摩擦、扩散和热化的马尔可夫量子主方程。它描述了任意初始旋转状态如何退相干并演变为吉布斯类热系综，正如我们对线性和平面顶部的数值说明一样，它产生了半经典极限下布朗运动的预期旋转福克-普朗克方程。
We present the Markovian quantum master equation describing rotational decoherence, friction, diffusion, and thermalization of planar, linear, and asymmetric rotors in contact with a thermal environment. It describes how an arbitrary initial rotation state decoheres and evolves toward a Gibbs-like thermal ensemble, as we illustrate numerically for the linear and the planar top, and it yields the expected rotational Fokker-Planck equation of Brownian motion in the semiclassical limit.