493 citations · 12.2k across the 287 of their papers we have counts for
280 papers · 1 filter
Enhanced quantum transport in chiral quantum walks
Emilio Annoni, Massimo Frigerio, Matteo G. A. Paris
Quantum transport across discrete structures is a relevant topic of solid state physics and quantum information science, which can be suitably studied in the context of continuous-…
Practical quantum secure direct communication with squeezed states
Iris Paparelle, Faezeh Mousavi, Francesco Scazza +3
Quantum secure direct communication (QSDC) is a rapidly developing quantum communication approach, where secure information is directly transmitted, providing an alternative to key…
Invasiveness of non-equilibrium quantum thermometry
Francesco Albarelli, Matteo G. A. Paris, Bassano Vacchini +1
One of the main advantages expected from using quantum probes as thermometers is non invasiveness, i.e., a negligible perturbation to the thermal sample. However, invasiveness is r…
Fast remote spectral discrimination through ghost spectrometry
Andrea Chiuri, Marco Barbieri, Iole Venditti +4
Assessing the presence of chemical, biological, radiological and nuclear threats is a crucial task which is usually dealt with by analyzing the presence of spectral features in a m…
Quantum routing of information using chiral quantum walks
Alberto Bottarelli, Massimo Frigerio, Matteo G. A. Paris
We address routing of classical and quantum information over quantum network, and show how to exploit chirality to achieve nearly optimal and robust transport. In particular, we pr…
Quantum ensembles and the statistical operator: a tutorial
Yinxiù Zhan, Matteo G. A. Paris
The main purpose of this tutorial is to elucidate in details what should be meant by ensemble of states in quantum mechanics, and to properly address the problem of discriminating,…
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…
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…
Decoherence and classicalization of continuous-time quantum walks on graphs
Gabriele Bressanini, Claudia Benedetti, Matteo G. A. Paris
We address decoherence and classicalization of continuous-time quantum walks (CTQWs) on graphs. In particular, we investigate three different models of decoherence, and employ the…
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…
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…
Probing of nonlinear hybrid optomechanical systems via partial accessibility
V. Montenegro, M. G. Genoni, A. Bayat +1
Hybrid optomechanical systems are emerging as a fruitful architecture for quantum technologies. Hence, determining the relevant atom-light and light-mechanics couplings is an essen…
Feedback-assisted quantum search by continuous-time quantum walks
Alessandro Candeloro, Claudia Benedetti, Marco G. Genoni +1
We address the quantum search of a target node on a cycle graph by means of a quantum walk assisted by continuous measurement and feedback. Unlike previous spatial search approache…
Cost-effective temperature estimation strategies for thermal states with probabilistic quantum metrology
Massimo Frigerio, Stefano Olivares, Matteo G. A. Paris
In probabilistic quantum metrology, one aims at finding weak measurements that concentrate the Fisher Information on the resulting quantum states, post-selected according to the we…
Quantum probes for the characterization of nonlinear media
Alessandro Candeloro, Sholeh Razavian, Matteo Piccolini +3
Active optical media leading to interaction Hamiltonians of the form represent a crucial resource for quantum optical technology. In this paper…
Multi-parameter quantum metrology with discrete-time quantum walks
Mostafa Annabestani, Majid Hassani, Dario Tamascelli +1
We address multi-parameter quantum estimation for one-dimensional discrete-time quantum walks and its applications to quantum metrology. We use the quantum walker as a probe for un…
An Enhanced Photonic Quantum Finite Automaton
Alessandro Candeloro, Carlo Mereghetti, Beatrice Palano +3
In a recent paper we have described an optical implementation of a measure-once one-way quantum finite automaton recognizing a well-known family of unary periodic languages, accept…
Multiclass classification of dephasing channels
Adriano M. Palmieri, Federico Bianchi, Matteo G. A. Paris +1
We address the use of neural networks (NNs) in classifying the environmental parameters of single-qubit dephasing channels. In particular, we investigate the performance of linear…
Novel technique for the active stabilization of the relative phase between seed and pump in an optical parametric oscillator
Simone Cialdi, Edoardo Suerra, Matteo G. A. Paris +1
We design and demonstrate a novel technique for the active stabilization of the relative phase between seed and pump in an optical parametric oscillator (OPO). We show that two err…
On the properties of the asymptotic incompatibility measure in multiparameter quantum estimation
Alessandro Candeloro, Matteo G. A. Paris, Marco G. Genoni
We address the use of asymptotic incompatibility (AI) to assess the quantumness of a multiparameter quantum statistical model. AI is a recently introduced measure which quantifies…
Quantum-classical distance as a tool to design optimal chiral quantum walk
Massimo Frigerio, Claudia Benedetti, Stefano Olivares +1
Continuous-time quantum walks (CTQWs) provide a valuable model for quantum transport, universal quantum computation and quantum spatial search, among others. Recently, the empoweri…