11 papers
Non-Hermitian entropy production from fluctuation theorems
Vasco Cavina, Frank Ernesto Quintela RodrÃguez, Donato Farina
We develop a first-principles thermodynamic framework for non-Hermitian dynamics based on a post-selected version of the fluctuation theorem. This allows us to identify a quantity…
Controlling the non-Markovianity of quantum Brownian motion
Guglielmo Pellitteri, Vittorio Giovannetti, Vasco Cavina
We analyze the exact dynamics of a generalized quantum Brownian motion model, employing Gaussian master equation methods. We demonstrate that, by modulating the relative weights of…
Quantum thermodynamics of the Caldeira-Leggett model with non-equilibrium Gaussian reservoirs
Vasco Cavina, Massimiliano Esposito
We introduce a non-equilibrium version of the Caldeira-Leggett model in which a quantum particle is strongly coupled to a set of engineered reservoirs. The reservoirs are composed…
Generalized multilevel amplitude damping channels and their thermodynamic performances
Vito Vetrano, Vittorio Giovannetti, Vasco Cavina
We introduce a new class of quantum channels, the Generalized Multilevel Amplitude Damping (GMAD) channels, to model noise and decoherence effects in a qudit coupled to a thermal e…
Exact requirements for battery-assisted qubit gates
Riccardo Castellano, Vasco Cavina, Martà Perarnau-Llobet +2
We consider the implementation of a unitary gate on a qubit system S via a global energy-preserving operation acting on S and an auxiliary system B that can be seen as a battery. W…
Exact quantum transport in non-Markovian open Gaussian systems
Guglielmo Pellitteri, Vittorio Giovannetti, Vasco Cavina
We build an exact framework to evaluate heat, energy, and particle transport between Gaussian reservoirs mediated by a quadratic quantum system. By combining full counting statisti…