Journal
NEW JOURNAL OF PHYSICS
Volume 17, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/17/1/013040
Keywords
Dicke model; time-delayed feedback; Pyragas control; quantum phase transitions; quantum optics
Categories
Funding
- DAAD
- DFG [BR 1528/7-1, 1528/8-2, 1528/9-1, SFB 910, GRK 1558]
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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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