Quantum Simulation of the Ultrastrong Coupling Dynamics in Circuit QED

TL;DR

This paper introduces a quantum simulation method using two-tone driving in circuit QED to explore the ultrastrong and deep strong light-matter coupling regimes, enabling access to previously unreachable quantum effects.

Contribution

The paper presents a novel two-tone driving scheme for simulating USC and DSC regimes in circuit QED, expanding experimental capabilities.

Findings

Simulation of USC/DSC quantum effects

Method compatible with current circuit-QED technology

Extension potential to general cavity-QED setups

Abstract

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.