Ultrastrong coupling between light and matter has, in the past decade, transitioned from a
theoretical idea to an experimental reality. It is a new regime of quantum light–matter …

In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

Physics | Free Full-Text | Fifty Years of the Dynamical Casimir Effect Next Article in Journal /
Special Issue History and Some Aspects of the Lamb Shift Previous Article in Journal Saga of …

A two-level system resonantly interacting with an ac magnetic or electric field constitutes the
physical basis of diverse phenomena and technologies. However, Schrödinger's equation …

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 consider two separate atoms interacting with a single-mode optical or microwave
resonator. When the frequency of the resonator field is twice the atomic transition frequency …

When an atom is strongly coupled to a cavity, the two systems can exchange a single photon
through a coherent Rabi oscillation. This process enables precise quantum-state …

We study the dynamical Casimir effect using a fully quantum-mechanical description of both
the cavity field and the oscillating mirror. We do not linearize the dynamics, nor do we adopt …

The interaction among the components of a hybrid quantum system is often neglected when
considering the coupling of these components to an environment. However, if the interaction …

Much of the novel physics predicted to be observable in the ultrastrong light–matter coupling
regime rests on the hybridisation between states with different numbers of excitations …