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arXiv · 1712.05163

Rotational friction and diffusion of quantum rotors

Benjamin A. Stickler·Björn Schrinski·Klaus Hornberger
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Abstract

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.

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Benjamin A. Stickler, Björn Schrinski, Klaus Hornberger. 2018-07-26. Rotational friction and diffusion of quantum rotors. https://doi.org/10.1103/physrevlett.121.040401

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