Dynamics of a spin-boson model with structured spectral density
Quantum Physics
2017-01-03 v1
Abstract
We report the results of a study of the dynamics of a two-state system coupled to an environment with peaked spectral density. An exact analytical expression for the bath correlation function is obtained. Validity range of various approximations to the correlation function for calculating the population difference of the system are discussed as function of tunneling splitting, oscillator frequency, coupling constant, damping rate and the temperature of the bath. An exact expression for the population difference for a limited range of parameters, is derived.
Keywords
Cite
@article{arxiv.1701.00122,
title = {Dynamics of a spin-boson model with structured spectral density},
author = {Kurt Arzu and Eryigit Resul},
journal= {arXiv preprint arXiv:1701.00122},
year = {2017}
}
Comments
14 pages, 4 figures