Quantum Stochastic Synchronization
Statistical Mechanics
2007-06-13 v1 Other Condensed Matter
Abstract
We study within the spin-boson dynamics the synchronization of quantum tunneling with an external periodic driving signal. As a main result we find that at a sufficiently large system-bath coupling strength (Kondo parameter a>1) the thermal noise plays a constructive role in yielding both a frequency and a phase synchronization in a symmetric two-level system. Such riveting synchronization occurs when the driving frequency supersedes the zero temperature tunneling rate. As an application evidencing the effect, we consider a charge transfer dynamics in molecular complexes.
Cite
@article{arxiv.cond-mat/0603400,
title = {Quantum Stochastic Synchronization},
author = {Igor Goychuk and Jesus Casado-Pascual and Manuel Morillo and Joerg Lehmann and Peter Hanggi},
journal= {arXiv preprint arXiv:cond-mat/0603400},
year = {2007}
}