Master equations are commonly employed in cosmology to model the effect of additional
degrees of freedom, treated as an “environment”, onto a given “system”. However, they rely …

Engines are systems and devices that convert one form of energy into another, typically into
a more useful form that can perform work. In the classical setup, physical, chemical, and …

We provide a detailed discussion about the unitary and reduced evolution induced by family
of Hamiltonian models describing a multilevel system, with a ground state and a possibly …

Spectral densities encode the relevant information characterizing the system–environment
interaction in an open-quantum system problem. Such information is key to determining the …

We study the concepts of complete positivity and positivity in a two-level open quantum
system whose dynamics are governed by a time-local quantum master equation. We …

The dynamics of open quantum systems is often solved by stochastic unravelings where the
average over the state-vector realizations reproduces the density matrix evolution. We focus …

Noise in quantum devices is generally considered detrimental to computational accuracy.
However, the recent proposal of noise-assisted simulation has demonstrated that noise can …

We discuss a model of a closed quantum evolution of two qubits where the joint Hamiltonian
is so chosen such that one of the qubits acts as a bath and thermalizes the other qubit which …

Focus of the first edition of this book was quantum dynamics in connection with correlations
as carriers of information and entropy as a measure of information. In the same spirit, this …

Since it's rediscovery in the twentieth century, the Mpemba effect, where a far-from-
equilibrium state may relax faster than a state closer to equilibrium, has been extensively …