Dynamical many-body phases of the parametrically driven, dissipative Dicke model

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2015
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Chitra, Ramasubramanian
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Control and manipulation of quantum engineered systems allows for the utilization of time-dependent parametric modulations for accessing novel out-of-equilibrium phenomena. In the absence of such driving, the dissipative Dicke model exhibits a fascinating out-of-equilibrium many-body phase transition as a function of a coupling between a driven photonic cavity and numerous two-level atoms. We study the effect of a parametric modulation of this coupling and discover a rich phase diagram as a function of the modulation strength. We find that in addition to the established normal and super-radiant phases, a new phase with pulsed superradiance, which we term dynamical normal phase, appears when the system is parametrically driven. Employing different methods, we characterize the different phases and the transitions between them. Specific heed is paid to the role of dissipation in determining the phase boundaries. Our analysis paves the road for the experimental study of dynamically stabilized phases of interacting light and matter.

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ISO 690CHITRA, Ramasubramanian, Oded ZILBERBERG, 2015. Dynamical many-body phases of the parametrically driven, dissipative Dicke model. In: Physical Review A. American Physical Society (APS). 2015, 92(2), 023815. ISSN 2469-9926. eISSN 2469-9934. Available under: doi: 10.1103/PhysRevA.92.023815
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@article{Chitra2015Dynam-54929,
  year={2015},
  doi={10.1103/PhysRevA.92.023815},
  title={Dynamical many-body phases of the parametrically driven, dissipative Dicke model},
  number={2},
  volume={92},
  issn={2469-9926},
  journal={Physical Review A},
  author={Chitra, Ramasubramanian and Zilberberg, Oded},
  note={Article Number: 023815}
}
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