We numerically study the dynamics and stationary states of a spin ensemble strongly
coupled to a single-mode resonator subjected to loss and external driving. Employing a …

Nanocavity lasers are commonly characterized by the spontaneous coupling coefficient β
that represents the fraction of photons emitted into the lasing mode. While β is …

We consider the model of two coupled oscillators with Kerr nonlinearities in the rotating-
wave approximation. We demonstrate that for a certain set of parameters of the model, the …

We investigate the Talbot self-imaging in one-dimensional discrete dimer lattices, where the
source of non-Hermiticity derives not from gain and loss but from anisotropic couplings. The …

Non-Hermitian physics of optical as well as atomic systems is crucial for modern quantum
mechanics and is the subject of increasing investigations. Here, we investigate the multi …

The elastic interaction causes a two‐step conversion from the low‐spin (LS) to the high‐spin
state (HS) following a femtosecond laser pulse excitation. These steps occur on different …

This book gives survey on the collapse of metastable state, ie, dynamics of relaxation of
metastable states by thermal and/or quantum fluctuation. Phenomena in nature are …

We investigate the nature of quantum jumps occurring between macroscopic metastable
states of light in the open driven Jaynes-Cummings model. We find that, in the limit of zero …

The nonequilibrium statistics and kinetics of a simple bistable system (resonantly driven
nonlinear oscillator coupled to reservoir) have been investigated by means of master …

We study a dynamical phase transition in optical bistable systems subject to a time-periodic
driving field. The phase transition occurs in the structure of a limit cycle as a function of the …