58 citations · 127 across the 6 of their papers we have counts for
6 papers
Quantum Fisher information as a witness of non-Markovianity and criticality in the spin-boson model
Daniele Parlato, Grazia Di Bello, Fabrizio Pavan +2
The quantum Fisher information, the quantum analogue of the classical Fisher information, is a central quantity in quantum metrology and quantum sensing due to its connection to pa…
Local ergotropy and its fluctuations across a dissipative quantum phase transition
G. Di Bello, D. Farina, D. Jansen +3
We investigate a two-qubit open Rabi model, focusing on local ergotropy--the maximum extractable work by acting solely on the two qubits--within a parameter regime where a Berezins…
Violation of TUR in a periodically driven work-to-work converter from weak to strong dissipation
Loris Maria Cangemi, Vittorio Cataudella, Giuliano Benenti +2
We study a model of isothermal steady-state work-to-work converter, where a single quantum two-level system (TLS) driven by time-dependent periodic external fields acts as the work…
Going beyond Local and Global approaches for localized thermal dissipation
Donato Farina, Giulio De Filippis, Vittorio Cataudella +2
Identifying which master equation is preferable for the description of a multipartite open quantum system is not trivial and has led in the recent years to the local vs. global deb…
Quantum Phase Transitions in the Spin-Boson model: MonteCarlo Method vs Variational Approach a la Feynman
G. De Filippis, A. de Candia, L. M. Cangemi +3
The effectiveness of the variational approach a la Feynman is proved in the spin-boson model, i.e. the simplest realization of the Caldeira-Leggett model able to reveal the quantum…
Electron-phonon coupling in undoped cuprate estimated from Raman and optical conductivity spectra
Donato Farina, Giulio De Filippis, Andrey S. Mishchenko +5
We study experimentally the Raman response of the undoped high-Tc parent compound , and give a unified theory of the two-magnon Raman peak and optical conductivity ba…