Very recently, dissipative coupling was discovered, which develops and broadens methods
for controlling and utilizing light-matter interactions. Here, we propose a scheme to generate …

The prototypical system constituted by a two-level atom interacting with a quantized single-
mode electromagnetic field is described by the quantum Rabi model (QRM). The QRM is …

The long coherence time of a single nitrogen vacancy (NV) center spin in diamond is a
crucial advantage for implementing quantum information processing. However, the …

Recently, a superradiant phase transition first predicted theoretically in the quantum Rabi
model (QRM) has been verified experimentally. This further stimulates the interest in the …

Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling
regimes can exhibit exotic physical phenomena and promise new applications in quantum …

The interaction between light and matter is one of the oldest research areas of quantum
mechanics, and a field that just keeps on delivering new insights and applications. With the …

The realization of strong nonlinear coupling between single photons has been a long-
standing goal in quantum optics and quantum information science, promising wide impact …

In ultra-and deep-strong cavity quantum electrodynamics (QED) systems, many intriguing
phenomena that do not conserve the excitation number are expected to occur. In this paper …

We introduce an eigen microstate approach (EMA) in the quantum system to describe the
quantum phase transition without knowing the order parameter. Phases of a quantum …

We study the emission spectra of the dissipative Rabi and Jaynes–Cummings models in the
non-Markovian and ultrastrong coupling regimes. We have derived a polaron-transformed …