Dynamical phases and intermittency of the dissipative quantum Ising model

Details Dynamical phases and intermittency of the dissipative quantum Ising model Dynamical phases and intermittency of the dissipative quantum Ising model

2011-12-19

arxiv.org/abs/1112.4273v2

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We employ the concept of a dynamical, activity order parameter to study the Ising model in a transverse magnetic field coupled to a Markovian bath. For a certain range of values of the spin-spin coupling, magnetic field and dissipation rate, we identify a first order dynamical phase transition between active and inactive {\em dynamical phases}. We demonstrate that dynamical phase-coexistence becomes manifest in an intermittent behavior of the bath quanta emission. Moreover, we establish the connection between the dynamical order parameter that quantifies the activity, and the longitudinal magnetization that serves as static order parameter. The system we consider can be implemented in current experiments with Rydberg atoms and trapped ions.

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