Generalized Dicke nonequilibrium dynamics in trapped ions

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 advant...

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Bibliographic Details
Published in:Physical review letters Vol. 112; no. 2; p. 023603
Main Authors: Genway, Sam, Li, Weibin, Ates, Cenap, Lanyon, Benjamin P, Lesanovsky, Igor
Format: Journal Article
Language:English
Published: United States 17-01-2014
Subjects:
Dissipation
Dressing
Dynamics
Fluorescence
Joining
Phase diagrams
Phases
Phonons
Online Access:Get full text
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Summary: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.
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content type line 23
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.112.023603