Generalized Dicke nonequilibrium dynamics in trapped ions.

Phys Rev Lett

School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.

Published: January 2014

AI Article Synopsis

  • This study investigates how trapped ions can be used to explore unusual phases in a modified Dicke model, focusing on dissipative spins linked to phonon modes.
  • The researchers discovered a complex dynamic phase diagram showcasing various behaviors like superradiance, phase coexistence, and phonon-lasing.
  • A key benefit of using trapped ions is their ability to be studied in real-time through fluorescence; the findings suggest the use of a minimal model and propose an experimental setup using Ca+ ions in a linear Paul trap.

Article Abstract

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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http://dx.doi.org/10.1103/PhysRevLett.112.023603DOI Listing

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