Continuous time crystals, i.e., nonequilibrium phases with a spontaneously broken continuous time-translational symmetry, have been studied and recently observed in the long-time dynamics of open quantum systems. In particular, experimental studies of strongly interacting thermal Rydberg gases have established that continuous time crystals (CTC) can emerge under the simultaneous optical...
Quantum gases can be manipulated with a variety of experimental tools and offer an excellent platform for the study of superfluid dynamics. Superfluidity is characterized by a collection of intringing dynamical behaviors, such as the existence of a critical velocity or the apparition of quantum vortices when the superfluid is set into rotation. At low temperature and moderate rotation...
Exciton-polaritons in 2D semiconductor heterostructures provide an ideal platform for exploring novel properties of strongly coupled light-matter quantum fluids. Recently, significant efforts have been dedicated to investigating beyond mean-field effects, with the long-term goal of entering the regime of quantum polaritonics. This presentation focuses on spinor polariton condensates, where,...
