Stochastic resonance and nonlinear response in a dissipative quantum two-state system
Statistical Mechanics
2009-10-30 v1
Abstract
We study the dynamics of a dissipative two-level, system driven by a monochromatic ac field, starting from the usual spin-boson Hamiltonian. The quantum Langevin equations for the spin variables are obtained. The amplitude of the coherent oscillations in the average position of the particle is studied in the high temperature limit. The system exhibits quantum stochastic resonance in qualitative agreement with earlier numerical results.
Cite
@article{arxiv.cond-mat/9704243,
title = {Stochastic resonance and nonlinear response in a dissipative quantum two-state system},
author = {T. P. Pareek and Mangal C. Mahato and A. M. Jayannavar},
journal= {arXiv preprint arXiv:cond-mat/9704243},
year = {2009}
}
Comments
PRB April 1997, figures available on request