493 citations · 12.2k across the 287 of their papers we have counts for
14 papers · 2 filters
GPU-accelerated algorithms for many-particle continuous-time quantum walks
Enrico Piccinini, Claudia Benedetti, Ilaria Siloi +2
Many-particle continuous-time quantum walks (CTQWs) represent a resource for several tasks in quantum technology, including quantum search algorithms and universal quantum computat…
All-optical quantum simulator of qubit noisy channels
Simone Cialdi, Matteo A. C. Rossi, Claudia Benedetti +4
We suggest and demonstrate an all-optical quantum simulator for single-qubit noisy channels originating from the interaction with a fluctuating field. The simulator employs the pol…
Noisy quantum walks of two indistinguishable interacting particles
Ilaria Siloi, Claudia Benedetti, Enrico Piccinini +4
We investigate the dynamics of continuous-time two-particle quantum walks on a one-dimensional noisy lattice. Depending on the initial condition, we show how the interplay between…
Minimal model for spontaneous quantum synchronization
Claudia Benedetti, Fernando Galve, Antonio Mandarino +2
We show the emergence of spontaneous synchronization between a pair of detuned quantum oscillators within a harmonic network. Our model does not involve any nonlinearity, driving,…
Characterization of qubit chains by Feynman probes
D. Tamascelli, C. Benedetti, S. Olivares +1
We address the characterization of qubit chains and assess the performances of local measurements compared to those provided by Feynman probes, i.e. nonlocal measurements realized…
Probing deformed quantum commutators
Matteo A. C. Rossi, Tommaso Giani, Matteo G. A. Paris
Quantum gravity theories predict a minimal length at the order of magnitude of the Planck length, under which the concepts of space and time lose every physical meaning. In quantum…
Microscopic description for the emergence of collective dissipation in extended quantum systems
Fernando Galve, Antonio Mandarino, Matteo G. A. Paris +2
Practical implementations of quantum technology are limited by unavoidable effects of decoherence and dissipation. With achieved experimental control for individual atoms and photo…
Quantum-limited estimation of continuous spontaneous localization
Sam McMillen, Matteo Brunelli, Matteo Carlesso +4
We apply the formalism of quantum estimation theory to extract information about potential collapse mechanisms of the continuous spontaneous localisation (CSL) form. In order to es…
Quantum metrology beyond the Quantum Cramér-Rao theorem
Luigi Seveso, Matteo A. C. Rossi, Matteo G. A. Paris
A usual assumption in quantum estimation is that the unknown parameter labels the possible states of the system, while it influences neither the sample space of outcomes nor the me…
Probing the sign of on-site Hubbard interaction by two-particle quantum walks
Andrea Beggi, Luca Razzoli, Paolo Bordone +1
We consider two identical bosons propagating on a one-dimensional lattice and address the prob- lem of discriminating whether their mutual on-site interaction is attractive or repu…
Quantum backflow effect and nonclassicality
Francesco Albarelli, Tommaso Guaita, Matteo G. A. Paris
The quantum backflow effect is a counterintuitive behavior of the probability current of a free particle, which may be negative even for states with vanishing negative momentum com…
Probing the diamagnetic term in light-matter interaction
Matteo A. C. Rossi, Matteo Bina, Matteo G. A. Paris +3
We address the quantum estimation of the diamagnetic, or , term in an effective model of light-matter interaction featuring two coupled oscillators. First, we calculate the qu…
Assessing the significance of fidelity as a figure of merit in quantum state reconstruction of discrete and continuous variable systems
Antonio Mandarino, Matteo Bina, Carmen Porto +3
We experimentally address the significance of fidelity as a figure of merit in quantum state reconstruction of discrete (DV) and continuous variable (CV) quantum optical systems. I…
Enhanced estimation of loss in the presence of Kerr nonlinearity
Matteo A. C. Rossi, Francesco Albarelli, Matteo G. A. Paris
We address the characterization of dissipative bosonic channels and show that estimation of the loss rate by Gaussian probes (coherent or squeezed) is improved in the presence of K…