Quantum Simulation of the Ultrastrong Coupling Dynamics in Circuit QED
  We propose a method to get experimental access to the physics of the ultrastrong (USC) and deep strong (DSC) coupling regimes of light-matter interaction through the quantum simulation of their dynamics in standard circuit QED. The method makes use of a two-tone driving scheme, using state-of-the-art circuit-QED technology, and can be easily extended to general cavity-QED setups. We provide examples of USC/DSC quantum effects that would be otherwise unaccessible. 
D. Ballester, G. Romero, J. J. Garc\'ia-Ripoll, F. Deppe, and E.   Solano
quant-ph cond-mat.mes-hall cond-mat.supr-con