The Dicke model describes the coupling between a quantized cavity field and a large
ensemble of two‐level atoms. When the number of atoms tends to infinity, this model can …

The permutational invariance of identical two-level systems allows for an exponential
reduction in the computational resources required to study the Lindblad dynamics of …

Discrete time crystals are a recently proposed and experimentally observed out-of-
equilibrium dynamical phase of Floquet systems, where the stroboscopic dynamics of a local …

The Dicke model—a paradigmatic example of superradiance in quantum optics—describes
an ensemble of atoms which are collectively coupled to a leaky cavity mode. As a result 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 show that dephasing of individual atoms destroys the superradiance transition of the
Dicke model, but that adding individual decay toward the spin down state can restore this …

Superradiance (SR) is a cooperative phenomenon which occurs when an ensemble of
quantum emitters couples collectively to a mode of the electromagnetic field as a single …

We investigate how symmetries and conserved quantities relate to the occurrence of the
boundary time crystal (BTC) phase in a generalized spin model with Lindblad dissipation …

We present the non-equilibrium phase diagram of a model which can demonstrate both
Dicke–Hepp–Lieb superradiance and regular lasing by varying the coherent and incoherent …

We study the all-to-all connected XYZ (anisotropic-Heisenberg) spin model with local and
collective dissipations, comparing the results of mean-field (MF) theory with the solution of …