Adiabatic dynamics in open quantum critical many-body systems
Statistical Mechanics
2009-11-13 v2 Other Condensed Matter
Abstract
The purpose of this work is to understand the effect of an external environment on the adiabatic dynamics of a quantum critical system. By means of scaling arguments we derive a general expression for the density of excitations produced in the quench as a function of its velocity and of the temperature of the bath. We corroborate the scaling analysis by explicitly solving the case of a one-dimensional quantum Ising model coupled to an Ohmic bath.
Cite
@article{arxiv.0805.0586,
title = {Adiabatic dynamics in open quantum critical many-body systems},
author = {Dario Patanè and Alessandro Silva and Luigi Amico and Rosario Fazio and Giuseppe E. Santoro},
journal= {arXiv preprint arXiv:0805.0586},
year = {2009}
}
Comments
4 pages, 4 figures; revised version to be published in Phys. Rev. Lett