3 papers
quant-ph2024
Zero-Fluctuation Quantum Work Extraction
Raffaele Salvia, Vittorio Giovannetti
We study the possibility of deterministic protocols for extracting work from quantum systems. Focusing on the two-point measurement work extraction scenario, we prove that, with en…
quant-ph2020
On the distribution of the mean energy in the unitary orbit of quantum states
Raffaele Salvia, Vittorio Giovannetti
Given a closed quantum system, the states that can be reached with a cyclic process are those with the same spectrum as the initial state. Here we prove that, under a very general…
quant-ph2019
Energy upper bound for structurally stable N-passive states
Raffaele Salvia, Vittorio Giovannetti
Passive states are special configurations of a quantum system which exhibit no energy decrement at the end of an arbitrary cyclic driving of the model Hamiltonian. When applied to…