Generalized Dicke nonequilibrium dynamics in trapped ions.
We explore trapped ions as a setting to investigate nonequilibrium phases in a generalized Dicke model of dissipative spins coupled to phonon modes. We find a rich dynamical phase diagram including superradiantlike regimes, dynamical phase coexistence, and phonon-lasing behavior. A particular advantage of trapped ions is that these phases and transitions among them can be probed in situ through fluorescence. We demonstrate that the main physical insights are captured by a minimal model and consider an experimental realization with Ca+ ions trapped in a linear Paul trap with a dressing scheme to create effective two-level systems with a tunable dissipation rate.
School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Sam
S
Genway
School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Weibin
W
Li
School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Cenap
C
Ates
Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstr. 21A, 6020 Innsbruck, Austria and Institut für Experimentalphysik, Universität Innsbruck,Technikerstr. 25, 6020 Innsbruck, Austria.
Benjamin P
BP
Lanyon
School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Igor
I
Lesanovsky