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 …

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 …

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 …

Graph states are a broad family of entangled quantum states, each defined by a graph
composed of edges representing the correlations between subsystems. Such states …

Large ensembles of laser-cooled atoms interacting through infinite-range photon-mediated
interactions are powerful platforms for quantum simulation and sensing. Here we realize …

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 …

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 …

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 …

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 …