437 citations · 3k across the 109 of their papers we have counts for
75 papers · 1 filter
Catalysis of quantum tunneling by ancillary system learning
Renzo Testa, Alex Rodriguez, Alberto d'Onofrio +3
Given the key role that quantum tunneling plays in a wide range of applications, a crucial objective is to maximize the probability of tunneling from one quantum state/level to ano…
Entanglement generation through Markovian feed-back in open two-qubit systems
Fabio Benatti, Francesca Gebbia, Stefano Pisoni
We discuss the generation and the long-time persistence of entanglement in open two-qubit systems whose reduced dissipative dynamics is not apriori engineered but is instead subjec…
On the capacity of a quantum perceptron for storing biased patterns
Fabio Benatti, Giovanni Gramegna, Stefano Mancini +1
Although different architectures of quantum perceptrons have been recently put forward, the capabilities of such quantum devices versus their classical counterparts remain debated.…
A quantum fluctuation description of charge qubits
F. Benatti, F. Carollo, R. Floreanini +2
We consider a specific instance of a superconducting circuit, the so-called charge-qubit, consisting of a capacitor and a Josephson junction. Starting from the microscopic descript…
Pattern capacity of a single quantum perceptron
Fabio Benatti, Giovanni Gramegna, Stefano Mancini
Recent developments in Quantum Machine Learning have seen the introduction of several models to generalize the classical perceptron to the quantum regime. The capabilities of these…
Temperature in Nonequilibrium Quantum Systems
S. Alipour, F. Benatti, M. Afsary +4
We extend on ideas from standard thermodynamics to show that temperature can be assigned to a general nonequilibrium quantum system. By choosing a physically motivated complete set…
Entanglement and non-locality in quantum protocols with identical particles
Fabio Benatti, Roberto Floreanini, Ugo Marzolino
We study the role of entanglement and non-locality in quantum protocols that make use of systems of identical particles. Unlike in the case of distinguishable particles, the notion…
Exact steady state of the open XX-spin chain: entanglement and transport properties
Fabio Benatti, Roberto Floreanini, Laleh Memarzadeh
We study the reduced dynamics of open quantum spin chains of arbitrary length with nearest neighbour interactions, immersed within an external constant magnetic field alon…
Bath assisted transport in a three-site spin chain: global {\sl vs} local approach
Fabio Benatti, Roberto Floreanini, Laleh Memarzadeh
Within the standard weak-coupling limit, the reduced dynamics of open quantum spin chains with their two end spins coupled to two distinct heat baths at different temperatures are…
Two-qubit quantum probes for the temperature of an Ohmic environment
Francesca Gebbia, Claudia Benedetti, Fabio Benatti +3
We address a particular instance where open quantum systems may be used as quantum probes for an emergent property of a complex system, as the temperature of a thermal bath. The in…
Continuous Variable Quantum Perceptron
Fabio Benatti, Stefano Mancini, Stefano Mangini
We present a model of Continuous Variable Quantum Perceptron (CVQP) whose architecture implements a classical perceptron. The necessary non-linearity is obtained via measuring the…
Quasi inversion of qubit channels
Vahid Karimipour, Fabio Benatti, Roberto Floreanini
Quantum operations, or quantum channels cannot be inverted in general. An arbitrary state passing through a quantum channel looses its fidelity with the input. Given a quantum chan…
Qubit Entanglement generation by Gaussian non-Markovian dynamics
Fabio Benatti, Luca Ferialdi, Stefano Marcantoni
We consider two qubits interacting with a common bosonic bath, but not directly between themselves. We derive the (bipartite) entanglement generation conditions for Gaussian non-Ma…
Quantum model for Impulsive Stimulated Raman Scattering
Filippo Glerean, Stefano Marcantoni, Giorgia Sparapassi +4
The interaction between ultrashort light pulses and non-absorbing materials is dominated by Impulsive Stimulated Raman Scattering (ISRS). The description of ISRS in the context of…
Noisy effects in interferometric quantum gravity tests
F. Benatti, R. Floreanini, S. Olivares +1
Quantum-enhanced metrology is boosting interferometer sensitivities to extraordinary levels, up to the point where table-top experiments have been proposed to measure Planck-scale…
Remarks on entanglement and identical particles
F. Benatti, R. Floreanini, F. Franchini +1
We argue that in the case of identical particles the most natural identification of separability, that is of absence of non-classical correlations, is via the factorization of mean…
Entropy production and non-Markovian dynamical maps
S. Marcantoni, S. Alipour, F. Benatti +2
In the weak-coupling limit approach to open quantum systems, the presence of the bath is eliminated and accounted for by a master equation that introduces dissipative contributions…
Quantum Fluctuations in Mesoscopic Systems
F. Benatti, F. Carollo, R. Floreanini +1
Recent experimental results point to the existence of coherent quantum phenomena in systems made of a large number of particles, despite the fact that for many-body systems the pre…
Impact of nonideal cycles on the efficiency of quantum heat engines
Mehdi Ramezani, Stefano Marcantoni, Fabio Benatti +4
Given a quantum heat engine that operates in a cycle that reaches maximal efficiency for a time-dependent Hamiltonian H(t) of the working substance, with overall controllable drivi…
Long-lived mesoscopic entanglement between two damped infinite harmonic chains
F. Benatti, F. Carollo, R. Floreanini +1
We consider two chains, each made of independent oscillators, immersed in a common thermal bath and study the dynamics of their mutual quantum correlations in the thermodynamic…
Quantum enhanced measurements without entanglement
Daniel Braun, Gerardo Adesso, Fabio Benatti +4
Quantum-enhanced measurements exploit quantum mechanical effects for increasing the sensitivity of measurements of certain physical parameters and have great potential for both fun…
Tensor power of dynamical maps and P- vs. CP-divisibility
Fabio Benatti, Dariusz Chruściński, Sergey Filippov
The are several non-equivalent notions of Markovian quantum evolution. In this paper we show that the one based on the so-called CP-divisibility of the corresponding dynamical map…
Correlations in quantum thermodynamics: Heat, work, and entropy production
S. Alipour, F. Benatti, F. Bakhshinezhad +3
We provide a characterization of energy in the form of exchanged heat and work between two interacting constituents of a closed, bipartite, correlated quantum system. By defining a…
A non-Markovian Dissipative Maryland Model
Fabio Benatti, Federico Carollo
The so-called Maryland model is a linear version of the quantum kicked rotor; it exhibits Anderson localization in momentum space. By turning the kicks into a Markovian stochastic…