کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1855164 | 1529903 | 2011 | 14 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Non-equilibrium effects upon the non-Markovian Caldeira–Leggett quantum master equation Non-equilibrium effects upon the non-Markovian Caldeira–Leggett quantum master equation](/preview/png/1855164.png)
We obtain a non-Markovian quantum master equation directly from the quantization of a non-Markovian Fokker–Planck equation describing the Brownian motion of a particle immersed in a generic environment (e.g. a non-thermal fluid). As far as the especial case of a heat bath comprising of quantum harmonic oscillators is concerned, we derive a non-Markovian Caldeira–Leggett master equation on the basis of which we work out the concept of non-equilibrium quantum thermal force exerted by the harmonic heat bath upon the Brownian motion of a free particle. The classical limit (or dequantization process) of this sort of non-equilibrium quantum effect is scrutinized, as well.
► Classical Brownian motion described by a non-Markovian Fokker—Planck equation.
► Quantization process.
► Quantum Brownian motion described by a non-Markovian Caldeira—Leggett equation.
► A non-equilibrium quantum thermal force is predicted.
Journal: Annals of Physics - Volume 326, Issue 5, May 2011, Pages 1354–1367