The past two decades have seen widespread efforts being directed toward the development
of nanoscale lasers. A plethora of studies on single such emitters have helped demonstrate …

Recent studies on exceptional points (EPs) in non-Hermitian optical systems have revealed
unique traits, including unidirectional invisibility, chiral mode switching and laser self …

We discuss the emergence of non-stationarity in open quantum many-body systems. This
leads us to the definition of dissipative time crystals which display experimentally …

These Lecture Notes discuss the recent theoretical advances in the understanding of open
quantum many-body physics in platforms where both dissipative and coherent processes …

A limit cycle is a self-sustained, periodic, isolated motion appearing in autonomous
differential equations. As the period of a limit cycle is a priori unknown, finding it as a …

We present the phase diagram of the mean-field driven-dissipative Bose–Hubbard dimer
model. For a dimer with repulsive on-site interactions (U> 0) and coherent driving, we prove …

We report the observation of a parametric instability in the out-of-equilibrium steady state of
two coupled Kerr microresonators coherently driven by a laser. Using a resonant excitation …

Self-sustained oscillations, limit cycles, are a fundamental phenomenon unique to nonlinear
dynamic systems of high-dimensional phase space. They enable understanding of a wide …

Despite the enormous technological interest in micro and nanolasers, surprisingly, no class‐
B quantum density‐matrix model is available to date, capable of accurately describing …

We demonstrate a regime in which matter-wave condensates of exciton-polaritons trapped
in an elliptically shaped two-dimensional potential appear as a coherent mixture of ground …