Bhattacharya Satyabrata, Chaudhury Pinaki, Chattopadhyay Sudip, Chaudhuri Jyotipratim Ray
Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103, India.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2 Pt 1):021123. doi: 10.1103/PhysRevE.78.021123. Epub 2008 Aug 18.
A system-reservoir nonlinear coupling model is proposed for a quantum system when the associated bath is not in thermal equilibrium but is modulated by an external colored noise, to present a microscopic approach to quantum state-dependent diffusion and multiplicative noise in terms of a quantum Langevin description. Consequently, the Fokker-Planck equation in position space, valid in the overdamped limit, for multiplicative colored noise is constructed to explore the possibility of observing a quantum current and dependence of the current on various parameters of external noise is examined.
针对相关热库处于非热平衡但受外部有色噪声调制的量子系统，提出了一种系统 - 热库非线性耦合模型，以便根据量子朗之万描述给出一种处理量子态依赖扩散和乘性噪声的微观方法。因此，构建了在过阻尼极限下有效的位置空间中的福克 - 普朗克方程，用于乘性有色噪声，以探索观测量子电流的可能性，并研究电流对外部噪声各种参数的依赖性。
