Following the initial success of cavity quantum electrodynamics in atomic systems, strong
coupling between light and matter excitations is now achieved in several solid-state set-ups …

Cooling of systems to sub-Kelvin temperatures is usually done using either a cold bath of
particles or spontaneous photon scattering from a laser field; in either case, cooling is driven …

The coherent quantum dynamics of a single bosonic spin variable, subject to a constraint
derived from the quantum spherical model of a ferromagnet, and coupled to an external heat …

A near-minimal instance of optical cooling is experimentally presented wherein the internal-
state entropy of a single atom is reduced more than twofold by illuminating it with …

We afford an experimentally feasible platform to study Boltzmann negative temperatures.
Our proposal takes advantage of well-known techniques of engineering Hamiltonian to …

Cooling of systems to sub-kelvin temperatures is usually done using either a cold bath of
particles or spontaneous photon scattering from a laser field; in either case, cooling is driven …

This study deals with the dynamic properties of open quantum systems far from equilibrium
in d dimensions. The focus is on a special, exactly solvable model, the spherical model …

We investigate the resonant cooling phenomena of a driven two-level radiator embedded in
a photonic-crystal structure. We find that cooling occurs even at laser-atom-frequency …

The connection between nonequilibrium quantum correlations, such as entanglement and
quantum discord, and cooling by heating is investigated for a system composed by two …

Esta tese é constituída por três estudos no contexto de Eletrodinâmica Quântica de
Cavidades. Primeiramente, investigamos a transição quântico-clássica de um campo de …