The Dicke model describes the collective behavior of a subwavelength–size ensemble of
two-level atoms (ie, spin-1/2) interacting identically with a single quantized radiation field of …

Central spin systems, in which a central spin is singled out and interacts nonlocally with
several bath spins, are paradigmatic models for nitrogen-vacancy centers and quantum …

We investigate experimentally and theoretically the collective coupling between atoms with
multilevel ground-state manifolds and an optical cavity mode. In our setup the cavity field …

We show that an optimized loading of a cold ensemble of rubidium-87 atoms from a
magnetic trap into an optical lattice sustained by a single, far-red-detuned mode of a high-Q …

Dissipative light-matter systems can display emergent collective behavior. Here, we report a
Z 2-symmetry-breaking phase transition in a system of multilevel Rb 87 atoms strongly …

We report on the observation of a novel manifestation of saturation-induced optical bistability
in a resonantly pumped optical ring cavity interacting strongly with a cloud of atoms via a …

We investigate the steady state phase diagram of fermionic atoms subjected to an optical
lattice and coupled to a high finesse optical cavity with photon losses. The coupling between …

We report on the anharmonic signatures in dissipative polaritons' stationary energy
distribution and thermodynamics under external periodic driving. First, we introduce a …

First-order phase transitions are ubiquitous in nature; however, this notion is ambiguous and
highly debated in the case of open quantum systems. We construct a paradigmatic example …

Bistability in the current–voltage characteristics of semiconductor superlattices and quantum
cascade laser structures has the potential for wide-ranging applications, particularly in …