Recent experiments have demonstrated that light and matter can mix together to an extreme
degree, and previously uncharted regimes of light-matter interactions are currently being …

This article reviews theoretical methods developed in the last decade to understand cavity
quantum electrodynamics in the ultrastrong‐coupling regime, where the strength of the light …

We propose a superconducting circuit to implement a two-photon quantum Rabi model in a
solid-state device, where a qubit and a resonator are coupled by a two-photon interaction …

We propose the quantum simulation of the quantum Rabi model in all parameter regimes by
means of detuned bichromatic sideband excitations of a single trapped ion. We show that …

The quantum Rabi model is in the scientific spotlight due to the recent theoretical and
experimental progress. Nevertheless, a full-fledged classification of its coupling regimes …

Two-photon processes have so far been considered only as resulting from frequency-
matched second-order expansions of light-matter interaction, with consequently small …

Quantum illumination consists in shining quantum light on a target region immersed in a
bright thermal bath with the aim of detecting the presence of a possible low-reflective object …

Here we describe how, utilizing a time-dependent optomechanical interaction, a mechanical
probe can provide an amplified measurement of the virtual photons dressing the quantum …

We present an experimentally feasible scheme to implement holonomic quantum
computation in the ultrastrong-coupling regime of light-matter interaction. The large …

In quantum field theory, bare particles are dressed by a cloud of virtual particles to form
physical particles. The virtual particles affect properties such as the mass and charge of the …