An important goal of modern condensed-matter physics involves the search for states of
matter with emergent properties and desirable functionalities. Although the tools for material …

The emergent field of cavity quantum materials bridges collective many-body phenomena in
solid state platforms with strong light–matter coupling in cavity quantum electrodynamics …

In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic
phenomena and systems as they appear in the literature on quantum materials and …

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 …

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 …

In the regime of deep strong light–matter coupling, the coupling strength exceeds the
transition energies of the material,–, fundamentally changing its properties,; for example, the …

Experiments at the interface of quantum optics and chemistry have revealed that strong
coupling between light and matter can substantially modify the chemical and physical …

We investigate electron paring in a two-dimensional electron system mediated by vacuum
fluctuations inside a nanoplasmonic terahertz cavity. We show that the structured cavity …

The light-matter interaction can be utilized to qualitatively alter physical properties of
materials. Recent theoretical and experimental studies have explored this possibility of …

Hybrid excitations, called polaritons, emerge in systems with strong light–matter coupling.
Usually, they dominate the linear and nonlinear optical properties with applications in …