114 citations · 421 across the 17 of their papers we have counts for
13 papers · 1 filter
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…
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…
Work extraction processes from noisy quantum batteries: the role of non local resources
Salvatore Tirone, Raffaele Salvia, Stefano Chessa +1
We demonstrate an asymmetry between the beneficial effects one can obtain using non-local operations and non-local states to mitigate the detrimental effects of environmental noise…
The battery capacity of energy-storing quantum systems
Xue Yang, Yan-Han Yang, Mir Alimuddin +5
The quantum battery capacity is introduced in this letter as a figure of merit that expresses the potential of a quantum system to store and supply energy. It is defined as the dif…
Critical quantum metrology assisted by real-time feedback control
Raffaele Salvia, Mohammad Mehboudi, Martí Perarnau-Llobet
We investigate critical quantum metrology,that is the estimation of parameters in many-body systems close to a quantum critical point, through the lens of Bayesian inference theory…
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…
Optimal local work extraction from bipartite quantum systems in the presence of Hamiltonian couplings
Raffaele Salvia, Giacomo De Palma, Vittorio Giovannetti
We investigate the problem of finding the local analogue of the ergotropy, that is the maximum work that can be extracted from a system if we can only apply local unitary transform…
Quantum advantage in charging cavity and spin batteries by repeated interactions
Raffaele Salvia, Martí Perarnau-Llobet, Géraldine Haack +2
Recently, an unconditional advantage has been demonstrated for the process of charging of a quantum battery in a collisional model. Motivated by the question of whether such an adv…
Extracting work from correlated many-body quantum systems
Raffaele Salvia, Vittorio Giovannetti
The presence of correlations in the input state of a non-interacting many-body quantum system can lead to an increase in the amount of work we can extract from it under global unit…
Quantum Energy Lines and the optimal output ergotropy problem
Salvatore Tirone, Raffaele Salvia, Vittorio Giovannetti
We study the transferring of useful energy (work) along a transmission line that allows for partial preservation of quantum coherence. As a figure of merit we adopt the maximum val…
Testing identity of collections of quantum states: sample complexity analysis
Marco Fanizza, Raffaele Salvia, Vittorio Giovannetti
We study the problem of testing identity of a collection of unknown quantum states given sample access to this collection, each state appearing with some known probability. We show…
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…
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…