68 citations · 269 across the 21 of their papers we have counts for
6 papers · 1 filter
Versatile photonic entanglement synthesizer in the spatial domain
David Barral, Mattia Walschaers, Kamel Bencheikh +4
Multimode entanglement is an essential resource for quantum information in continuous-variable systems. Light-based quantum technologies will arguably not be built upon table-top b…
Sending classical information via three noisy channels in superposition of causal orders
Lorenzo M. Procopio, Francisco Delgado, Marco Enriquez +2
In this work, we study the transmission of classical information through three completely depolarizing channels in superposition of different causal orders. We thus introduce the q…
Coupling quasi-phase matching: entanglement buildup in nonlinear waveguide arrays
David Barral, Nadia Belabas, Kamel Bencheikh +1
Wavevector quasi-phase matching was devised in the 1960s as a way to boost nonlinear interactions with efficient quantum noise squeezing as one outstanding outcome. In the era of q…
Zero supermode-based multipartite entanglement in nonlinear waveguides arrays
David Barral, Kamel Bencheikh, Nadia Belabas +1
We show that arrays of nonlinear waveguides in the second harmonic generation regime are a promising source of continuous-variable entanglement. We indeed demonstrate ana…
Symmetry-based analytical solutions to the χ^{(2)} nonlinear directional coupler
David Barral, Kamel Bencheikh, Peter J. Olver +2
In general the ubiquitous χ^{(2)} nonlinear directional coupler, where nonlinearity and evanescent coupling are intertwined, is nonintegrable. We rigorously demonstrate that matchi…
Communication Enhancement Through Quantum Coherent Control of Channels in an Indefinite Causal-order Scenario
Lorenzo M. Procopio, Francisco Delgado, Marco Enriquez +2
In quantum Shannon theory, transmission of information is enhanced by quantum features. Up to very recently, the trajectories of transmission remained fully classical. Recently, a…