518 citations · 1.7k across the 81 of their papers we have counts for
82 papers
Operational quasiprobability formulation of non-signaling in time for macrorealism violations
Stefano Gherardini, Paolo Solinas
In this paper, we introduce the concept of quasi non-signaling in time (QNSIT), which extends non-signaling in time (NSIT) to quasiprobability distributions. QNSIT requires that th…
Reverse engineering of mechano-kinetic parameters from stochastic force profiles in heterogeneous ensembles of molecular motors and tracks
Valentina Buonfiglio, Irene Pertici, Pasquale Bianco +2
Heterogeneity in contractile systems of molecular motors interacting with their tracks plays a key role in numerous cellular physiological and pathological processes. However, its…
Macroscopic Fokker-Planck equation from microscopic Glauber dynamics for the Nagle-Kardar model
Jean-François de Kemmeter, Stefano Ruffo, Stefano Gherardini
In the companion Letter we have highlighted the dynamical universality class of the Nagle-Kardar model, where a mean-field interaction is added to the one-dimensional nearest-neigh…
Quantum work statistics and coherence effects in quenched bosonic Josephson junctions
Mattia Orlandini, Stefano Gherardini, Lorenzo Buffoni +1
We investigate the non-equilibrium work statistics originating from a sudden quench in a bosonic Josephson junction. In particular, by employing the Holstein-Primakoff approximatio…
Revealing the topology of quantum states via Kirkwood-Dirac quasiprobabilities
Stefano Gherardini, Luca Lepori
We discuss a theoretical approach to discriminate whether two states of a many-body quantum system belong or not to different topology classes. This approach is based on expressing…
Nonclassical energy-change distribution as a witness of non-Markovian quantum dynamics
Marco Pezzutto, Anton Corr, Gabriele De Chiara +2
We address the problem of identifying non-Markovian quantum time evolutions of an open quantum system by only performing measurements of the system's energy. We demonstrate that vi…
Squeezing and adiabaticity breaking in time-dependent quantum harmonic oscillators
Mattia Orlandini, Beatrice Donelli, Lorenzo Buffoni +1
The quantum harmonic oscillator with time-dependent frequency is a paradigmatic model of driven quantum dynamics and one of the few nontrivial systems that admits an exact analytic…
Operational criterion for Wigner function negativity
Paolo Solinas, Beatrice Donelli, Stefano Gherardini
We introduce an operational criterion to identify Wigner function (WF) negativity for an arbitrary quantum state within the framework of quantum non-demolition measurements. This c…
Ising Models of Cooperativity in Muscle Contraction
Elaheh Saadat, Matthieu Caruel, Stefano Gherardini +6
Regulation of contraction in striated muscle is controlled by a dual mechanism involving both thin filaments containing actin and thick filaments containing myosin. The thin filame…
Experimental challenges and prospects for quantum-enhanced energy conversion: Stationary Fano coherence in V-type qutrits interacting with polarized incoherent radiation
Ludovica Donati, Francesco Saverio Cataliotti, Stefano Gherardini
Quantum coherence offers potential for energy conversion technologies. It influences light absorption and emission, affecting energy conversion limits and efficiency. As a result,…
Quantumness certification via non-demolition measurements
Paolo Solinas, Stefano Gherardini
The fundamental question of when a static or dynamic system should be deemed intrinsically quantum remains a challenge to address in absolute terms. In this regard, a critical requ…
Dynamical universality class for competing short- and long-range interactions
Jean-François de Kemmeter, Stefano Ruffo, Stefano Gherardini
Understanding the dynamical universality classes of systems with long-range interactions remains a key challenge in statistical physics. In this Letter, we analytically and numeric…
Conditioning in Generative Quantum Denoising Diffusion Models
Daniel Quinn, Lorenzo Buffoni, Stefano Gherardini +1
Quantum denoising diffusion models have recently emerged as a powerful framework for generative quantum machine learning. In this work, we extend these models by introducing a cond…
Impact of quantum coherence on the dynamics and thermodynamics of quenched free fermions coupled to a localized defect
Beatrice Donelli, Gabriele De Chiara, Francesco Scazza +1
We investigate the non-equilibrium quantum dynamics and thermodynamics of free fermions suddenly coupled to a localized defect in a one-dimensional harmonic trap. This setup realiz…
Orthogonalization speed-up from quantum coherence after a sudden quench
Beatrice Donelli, Gabriele De Chiara, Francesco Scazza +1
We introduce a nonequilibrium phenomenon, reminiscent of Anderson's orthogonality catastrophe (OC), that arises in the transient dynamics following an interaction quench between a…
Nonequilibrium thermometry via an ensemble of initially correlated qubits
Enrico Trombetti, Marco Malitesta, Marco Pezzutto +1
We investigate a nonequilibrium quantum thermometry protocol in which an ensemble of qubits, acting as temperature probes, is weakly coupled to a macroscopic thermal bath. The temp…
Non-positive energy quasidistributions in coherent collision models
Marco Pezzutto, Gabriele De Chiara, Stefano Gherardini
We determine the Kirkwood-Dirac quasiprobability (KDQ) distribution associated to the stochastic instances of internal energy variations for the quantum system and environment part…
Squeezing generation crossing a mean-field critical point: Work statistics, irreversibility and critical fingerprints
Fernando J. Gómez-Ruiz, Stefano Gherardini, Ricardo Puebla
Understanding the dynamical consequences of quantum phase transitions on thermodynamical quantities, such as work statistics and entropy production, is one of the most intriguing a…
Charging a quantum spin network towards Heisenberg-limited precision
Beatrice Donelli, Stefano Gherardini, Raffaele Marino +2
We present a cooperative protocol to charge quantum spin networks up to the highest-energy configuration, in terms of the network's magnetization. The charging protocol leverages s…
Quantum Non-Demolition Measurements and Leggett-Garg inequality
Paolo Solinas, Stefano Gherardini
Quantum non-demolition measurements define a non-invasive protocol to extract information from a quantum system that we aim to monitor. They exploit an additional quantum system th…
Quasiprobability distributions with weak measurements
Gabriele Bizzarri, Stefano Gherardini, Mylenne Manrique +3
We discuss and experimentally demonstrate the role of quantum coherence in a sequence of two measurements collected at different times using weak measurements. For this purpose, we…
Coherence-enhanced single-qubit thermometry out of equilibrium
Gonçalo Frazao, Marco Pezzutto, Yasser Omar +2
The metrological limits of thermometry operated in nonequilibrium dynamical regimes are analyzed. We consider a finite-dimensional quantum system, employed as a quantum thermometer…
Interferometry of quantum correlation functions to access quasiprobability distribution of work
Santiago Hernández-Gómez, Takuya Isogawa, Alessio Belenchia +4
The Kirkwood-Dirac quasiprobability distribution, intimately connected with the quantum correlation function of two observables measured at distinct times, is becoming increasingly…
Energy exchange statistics and fluctuation theorem for non-thermal asymptotic states
Santiago Hernández-Gómez, Francesco Poggiali, Paola Cappellaro +4
Exchange energy statistics between two bodies at different thermal equilibrium obey the Jarzynski-Wójcik fluctuation theorem. The corresponding energy scale factor is the differenc…