17 papers
Energetics in daemonic work extraction protocols via non-ideal QND-energy measurement
Daniele Morrone, Francesco Albarelli, Vittorio Giovannetti +2
We address the problem of extracting work from a quantum system assisted by a quantum non-demolition (QND) energy measurement. When a perfect QND measurement can be performed and a…
Measurement incompatibility in Bayesian multiparameter quantum estimation
Francesco Albarelli, Dominic Branford, Jesús Rubio +1
We present a comprehensive and pedagogical formulation of Bayesian multiparameter quantum estimation. Within this framework, we analyse the role of measurement incompatibility and…
Attaining Quantum Sensing Enhancement from Monitored Dissipative Time Crystals
Eoin O'Connor, Victor Montenegro, Francesco Albarelli +3
This study investigates quantum-enhanced parameter estimation through continuous monitoring in open quantum systems that exhibit a dissipative time crystal phase. We first analytic…
Precision limits for time-dependent quantum metrology under Markovian noise
Luca Previdi, Francesco Albarelli
We derive ultimate precision bounds for estimating parameters encoded in \emph{time-dependent} Hamiltonians in the presence of general Markovian noise, allowing for arbitrary adapt…
OH molecule as a quantum probe to jointly estimate electric and magnetic fields
Luca Previdi, Francesco Albarelli, Matteo G. A. Paris
The hydroxyl radical, hereafter referred to as the OH molecule (OHM), carries both electric and magnetic dipole moments and, as a diatomic molecule, admits a comparatively simple a…
Efficient evaluation of fundamental sensitivity limits and full counting statistics for continuously monitored Gaussian quantum systems
Francesco Albarelli, Marco G. Genoni
Generalized master equations (GMEs) -- time-local but generally neither trace-preserving nor Hermiticity-preserving -- are convenient tools to compute properties of the environment…