2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
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27 papers · 2 filters
Lossy Micromaser Battery: Almost Pure States in the Jaynes-Cummings Regime
Vahid Shaghaghi, Varinder Singh, Matteo Carrega +2
We consider a micromaser model of a quantum battery, where the battery is a single mode of the electromagnetic field in a cavity, charged via repeated interactions with a stream of…
Joint quantum estimation of loss and nonlinearity in driven-dissipative Kerr resonators
Muhammad Asjad, Berihu Teklu, Matteo G. A. Paris
We address multiparameter quantum estimation for coherently driven nonlinear Kerr resonators in the presence of loss. In particular, we consider the realistic situation in which th…
Quantum computation of complex systems
Giuliano Benenti, Giulio Casati
This chapter is a short pedagogical introduction to the use of quantum logic for the simulation of complex quantum systems, including a simulation example on actual quantum hardwar…
Correcting Coherent Errors by Random Operation on Actual Quantum Hardware
Gabriele Cenedese, Giuliano Benenti, Maria Bondani
Characterizing and mitigating errors in current noisy intermediate-scale devices is important to improve performance of next generations of quantum hardware. In order to investigat…
Entanglement recovery in noisy binary quantum information protocols via three-qubit quantum error correction codes
Alessio Morea, Michele N. Notarnicola, Stefano Olivares
The task of preserving entanglement against noises is of crucial importance for both quantum communication and quantum information transfer. To this aim, quantum error correction (…
Entanglement dynamics and classical complexity
Jiaozi Wang, Barbara Dietz, Dario Rosa +1
We study the dynamical generation of entanglement for a two-body interacting system, starting from a separable coherent state. We show analytically that in the quasiclassical regim…
Probabilistic amplitude shaping for continuous-variable quantum key distribution with discrete modulation over a wiretap channel
Michele N. Notarnicola, Stefano Olivares, Enrico Forestieri +3
To achieve the maximum information transfer and face a possible eavesdropper, the samples transmitted in continuous-variable quantum key distribution (CV-QKD) protocols are to be d…
Fundamental limits of pulsed quantum light spectroscopy: Dipole moment estimation
Francesco Albarelli, Evangelia Bisketzi, Aiman Khan +1
We study the fundamental limits of the precision of estimating parameters of a quantum matter system when it is probed by a travelling pulse of quantum light. In particular, we foc…
On the use of total state decompositions for the study of reduced dynamics
Andrea Smirne, Nina Megier, Bassano Vacchini
The description of the dynamics of an open quantum system in the presence of initial correlations with the environment needs different mathematical tools than the standard approach…
Non-perturbative treatment of open-system multi-time expectation values in Gaussian bosonic environments
A. Smirne, D. Tamascelli, J. Lim +2
We determine the conditions for the equivalence between the multi-time expectation values of a general finite-dimensional open quantum system when interacting with, respectively, a…
Fingerprint and universal Markovian closure of structured bosonic environments
Alexander Nüßeler, Dario Tamascelli, Andrea Smirne +3
We exploit the properties of chain mapping transformations of bosonic environments to identify a finite collection of modes able to capture the characteristic features, or fingerpr…
Entropic and trace distance based measures of non-Markovianity
Federico Settimo, Heinz-Peter Breuer, Bassano Vacchini
We analyze and compare different measures for the degree of non-Markovianity in the dynamics of open quantum systems. These measures are based on the distinguishability of quantum…
Hybrid near-optimum binary receiver with realistic photon-number-resolving detectors
Michele N. Notarnicola, Matteo G. A. Paris, Stefano Olivares
We propose a near-optimum receiver for the discrimination of binary phase-shift-keyed coherent states employing photon-number-resolving detectors. The receiver exploits a discrimin…
Swift chiral quantum walks
Massimo Frigerio, Matteo G. A. Paris
A continuous-time quantum walk (CTQW) is sedentary if the return probability in the starting vertex is close to one at all times. Recent results imply that, when starting from a ma…
Noisy propagation of Gaussian states in optical media with finite bandwidth
Berihu Teklu, Matteo Bina, Matteo G. A. Paris
We address propagation and entanglement of Gaussian states in optical media characterised by non-trivial spectral densities. In particular, we consider environments with a finite b…
Perturbed graphs achieve unit transport efficiency without environmental noise
Simone Cavazzoni, Luca Razzoli, Paolo Bordone +1
Coherent transport of an excitation through a network corresponds to continuous-time quantum walk on a graph, and the transport properties of the system may be radically different…
Dynamical heat engines with non--Markovian reservoirs
Fabio Cavaliere, Matteo Carrega, Giulio De Filippis +3
We discuss whether, and under which conditions, it is possible to realize a heat engine simply by dynamically modulating the couplings between the quantum working medium and therma…
Micromasers as Quantum Batteries
Vahid Shaghaghi, Varinder Singh, Giuliano Benenti +1
We show that a micromaser is an excellent model of quantum battery. A highly excited, pure, and effectively steady state of the cavity mode, charged by coherent qubits, can be achi…
The eight-port homodyne detector: the effect of imperfections on quantum random number generation and on detection of quadratures
Alberto Barchielli, Alberto Santamato
The eight-port homodyne detector is an optical circuit designed to perform the monitoring of two quadratures of an optical field, the signal. By using quantum Bose fields and quant…
Gravitational time dilation as a resource in quantum sensing
Carlo Cepollaro, Flaminia Giacomini, Matteo G. A. Paris
Atomic clock interferometers are a valuable tool to test the interface between quantum theory and gravity, in particular via the measurement of gravitational time dilation in the q…
Quantum Networks for High Energy Physics
Andrei Derevianko, Eden Figueroa, Julián MartÍnez-Rincón +12
Quantum networks of quantum objects promise to be exponentially more powerful than the objects considered independently. To live up to this promise will require the development of…
Quantum simulation with just-in-time compilation
Stavros Efthymiou, Marco Lazzarin, Andrea Pasquale +1
Quantum technologies are moving towards the development of novel hardware devices based on quantum bits (qubits). In parallel to the development of quantum devices, efficient simul…
Universality of the fully connected vertex in Laplacian continuous-time quantum walk problems
Luca Razzoli, Paolo Bordone, Matteo G. A. Paris
A fully connected vertex in a simple graph of order is a vertex connected to all the other vertices. Upon denoting by the Laplacian matrix of the graph, we pr…
An open-source modular framework for quantum computing
Stefano Carrazza, Stavros Efthymiou, Marco Lazzarin +1
In this proceedings we describe the current development status and recent technical achievements of Qibo, an open-source framework for quantum simulation. After a concise overview…