Time-delayed feedback control of the Dicke-Hepp-Lieb superradiant quantum phase transition
arXiv:1403.0620 · doi:10.1088/1367-2630/17/1/013040
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.
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