6 papers
Spin-chain based quantum thermal machines
Edoardo Maria Centamori, Michele Campisi, Vittorio Giovannetti
We study the performance of quantum thermal machines in which the working fluid of the model is represented by a many-body quantum system that is periodically connected with extern…
Reinforcement learning optimization of the charging of a Dicke quantum battery
Paolo Andrea Erdman, Gian Marcello Andolina, Vittorio Giovannetti +1
Quantum batteries are energy-storing devices, governed by quantum mechanics, that promise high charging performance thanks to collective effects. Due to its experimental feasibilit…
Quantum work extraction efficiency for noisy quantum batteries: the role of coherence
Salvatore Tirone, Raffaele Salvia, Stefano Chessa +1
Quantum work capacitances and maximal asymptotic work/energy ratios are figures of merit characterizing the robustness against noise of work extraction processes in quantum batteri…
Maximum tolerable excess noise in continuous-variable quantum key distribution and improved lower bound on two-way capacities
Francesco Anna Mele, Ludovico Lami, Vittorio Giovannetti
The two-way capacities of quantum channels determine the ultimate entanglement and secret-key distribution rates achievable by two distant parties that are connected by a noisy tra…
Low-ground/High ground capacity regions analysis for Bosonic Gaussian Channels
Farzad Kianvash, Marco Fanizza, Vittorio Giovannetti
We present a comprehensive characterization of the interconnections between single-mode, phaseinsensitive Gaussian Bosonic Channels resulting from channel concatenation. This chara…
Quantum Work Capacitances: ultimate limits for energy extraction on noisy quantum batteries
Salvatore Tirone, Raffaele Salvia, Stefano Chessa +1
We present a theoretical analysis of the energy recovery efficiency for quantum batteries composed of many identical quantum cells undergoing noise. While the possibility of using…