Quantum Simulation of the Ultrastrong-Coupling Dynamics in Circuit Quantum Electrodynamics

We propose a method to get experimental access to the physics of the ultrastrong- and deep-strongcoupling 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 ultrastrong- and deep-strong-coupling quantum effects that would be otherwise inaccessible.