Nonequilibrium Quantum Phase Transitions in the Dicke Model
Quantum Physics
2012-01-31 v2 Quantum Gases
Abstract
We establish a set of nonequilibrium quantum phase transitions in the Dicke model by considering a monochromatic nonadiabatic modulation of the atom-field coupling. For weak driving the system exhibits a set of sidebands which allow the circumvention of the no-go theorem which otherwise forbids the occurence of superradiant phase transitions. At strong driving we show that the system exhibits a rich multistable structure and exhibits both first- and second-order nonequilibrium quantum phase transitions.
Cite
@article{arxiv.1108.2987,
title = {Nonequilibrium Quantum Phase Transitions in the Dicke Model},
author = {V. M. Bastidas and C. Emary and B. Regler and T. Brandes},
journal= {arXiv preprint arXiv:1108.2987},
year = {2012}
}
Comments
4 pages, 3 Figures, and supplementary material. This new version contains corrected typos, new references and new versions of the figures. Published by Physical Review Letters