Phase induced current in presence of nonequilibrium bath: A quantum approach.
Based on a system-reservoir nonlinear coupling model, where the associated bath is externally driven by a fluctuating force, we present a microscopic approach to quantum state-dependent diffusion and multiplicative noises in terms of a quantum (Markovian) Langevin equation in overdamped limit when the associated bath is in nonequilibrium state. We then explore the possibility of observing a quantum current when the bath is modulated by white noise, the phenomena which is absent in the classical regime.
Bhattacharya
Satyabrata
S
Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103, India.
Chaudhury
Pinaki
P
Chattopadhyay
Sudip
S
Chaudhuri
Jyotipratim Ray
JR