Exceptional points (EPs) correspond to degeneracies of open systems. These are attracting
much interest in optics, optoelectronics, plasmonics, and condensed matter physics. In the …

A state of an open quantum system is described by a density matrix, whose dynamics is
governed by a Liouvillian superoperator. Within a general framework, we explore …

We propose a scheme to generate squeezed states of magnon and phonon modes and
verify squeezing transfer between different modes of distinct frequencies in a cavity …

We study an array of coupled optical cavities in the presence of two-photon driving and
dissipation. The system displays a critical behavior similar to that of a quantum Ising model …

We report an efficient mechanism to generate a squeezed state of a mechanical mirror in an
optomechanical system. We use an especially tuned parametric amplifier (PA) inside the …

The main power of quantum sensors is achieved when the probe is composed of several
particles. In this situation, quantum features such as entanglement contribute in enhancing …

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 …

In driven-dissipative systems, the presence of a strong symmetry guarantees the existence
of several steady states belonging to different symmetry sectors. Here we show that when a …

We present a method to implement two-phonon interactions between mechanical resonators
and spin qubits in hybrid setups, and show that these systems can be applied for the …

The surface-enhanced Raman scattering (SERS) of molecular species in plasmonic cavities
can be described as an optomechanical process where plasmons constitute an optical …