Time-delayed feedback control of the Dicke-Hepp-Lieb superradiant quantum phase transition
Quantum Physics
2015-03-09 v2 Quantum Gases
Statistical Mechanics
Abstract
We apply the time-delayed Pyragas control scheme to the dissipative Dicke model via a modulation of the atom-field-coupling. The feedback creates an infinite sequence of non-equilibrium phases with fixed points and limit cycles in the primary superradiant regime. We analyse this Hopf bifurcation scenario as a function of delay time and feedback strength, and determine analytical conditions for the phase boundaries.
Keywords
Cite
@article{arxiv.1403.0620,
title = {Time-delayed feedback control of the Dicke-Hepp-Lieb superradiant quantum phase transition},
author = {Wassilij Kopylov and Clive Emary and Eckehard Schöll and Tobias Brandes},
journal= {arXiv preprint arXiv:1403.0620},
year = {2015}
}