Observing the Nonequilibrium Dynamics of the Quantum Transverse-Field   Ising Chain in Circuit QED
  We show how a quantum Ising spin chain in a time-dependent transverse magnetic field can be simulated and experimentally probed in the framework of circuit QED with current technology. The proposed setup provides a new platform for observing the nonequilibrium dynamics of interacting many-body systems. We calculate its spectrum to offer a guideline for its initial experimental characterization. We demonstrate that quench dynamics and the propagation of localized excitations can be observed with the proposed setup and discuss further possible applications and modifications of this circuit QED quantum simulator. 
Oliver Viehmann, Jan von Delft, and Florian Marquardt
cond-mat.mes-hall quant-ph