Describing open quantum systems far from equilibrium is challenging, in particular when the
environment is mesoscopic, when it develops nonequilibrium features during the evolution …

A perturbative quantum master equation is derived for a system interacting with its
environment, which is more general than the ones derived before. Our master equation …

We report the study of a model of a two-level system interacting in a nondiagonal way with a
complex environment described by Gaussian orthogonal random matrices (GORM). The …

We study the decoherence and thermalization dynamics of a nanoscale system coupled
nonperturbatively to a fully quantum-mechanical bath. The system is prepared out of …

Are Markovian master equations for quantum Brownian motion independent of model
assumptions used in the derivation and, thus, universal? With the aim of answering this …

We consider a two-level system,, coupled to a general n level system,, via a random matrix.
We derive an integral representation for the mean reduced density matrix ρ (t) of in the limit …

We use the eigenstate thermalization hypothesis to derive a quantum master equation for a
system weakly coupled to a chaotic finite-sized bath prepared in a pure state. We show that …

In recent years, an increasing number of experimental results have been published for a
wide variety of systems in which high-precision, ultra-fast, and ultra-short laser pulses …

Decoherence theory has shown that, after a unitary system-detector interaction, the
components of the wave function belonging to different measurement outcomes behave …

We discuss the possibility of having “quantum dissipation” due to the interaction with chaotic
degrees of freedom. We define the conditions that should be satisfied in order to have a …