Exact treatment of the transport of a quantum particle in a dimer under the influence of dichotomic colored noise

Abstract

The transport of a quantum particle in a dimer is investigated for the case in which the influence of the phonons is modeled by a dichotomic stochastic process with exponentially decaying correlation functions. An exact numerical solution of the density-matrix equation of the problem is carried out, and the transition from coherent to incoherent transport is discussed.