2013/08/06 by Sam Genway, Weibin Li, Cenap Ates +2 · 1 citation
Physics and Astronomy · #quant-ph #cond-mat.quant-gas #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.112.023603
published as Phys. Rev. Lett. 112, 023603(2014) · 6 pages, 5 figures
arxiv created 2013/08/06 · arxiv updated 2014/08/06
We explore trapped ions as a setting to investigate non-equilibrium phases in a generalised Dicke model of dissipative spins coupled to phonon modes. We find a rich dynamical phase diagram including superradiant-like regimes, dynamical phase-coexistence and phonon-lasing behaviour. 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 realisation with Ca+ ions trapped in a linear Paul trap.