We review the recent developments and the current status in the field of quantum-gas cavity
QED. Since the first experimental demonstration of atomic self-ordering in a system …

The interaction of light and matter at the single-photon level is of central importance in
various fields of physics, including, eg, condensed matter physics, astronomy, quantum …

Interactions govern the flow of information and the formation of correlations between
constituents of many-body quantum systems, dictating phases of matter found in nature and …

We report direct observations of photon-mediated spin-exchange interactions in an atomic
ensemble. Interactions extending over a distance of 500 μ m are generated within a cloud of …

The Dicke model is a paradigm of collective behavior in quantum mechanics describing an
ensemble of N two-level atoms interacting with a single mode of the electromagnetic field …

We investigate the collective decay dynamics of atoms with a generic multilevel structure
(angular momenta F↔ F′) coupled to two light modes of different polarization inside a …

Quantum phase transitions universally exist in the ground and excited states of quantum
many-body systems, and they have a close relationship with the nonequilibrium dynamical …

A periodically driven open three-level Dicke model is realized by resonantly shaking the
pump field in an atom-cavity system. As an unambiguous signature, we demonstrate the …

Using an ensemble of atoms in an optical cavity, we engineer a family of nonlocal
Heisenberg Hamiltonians with continuously tunable anisotropy of the spin-spin couplings …

We consider theoretically a driven-dissipative quantum many-body system consisting of an
atomic ensemble in a single-mode optical cavity as described by the open Tavis-Cummings …