4 papers
Bell nonlocality does not imply violation of nonlocal games
Ricardo Faleiro, Lucas E. A. Porto, Marco Túlio Quintino +1
Nonlocal games offer a conceptually clear way to reason about Bell nonlocality. However, we show that as originally defined, and most commonly used, i.e. with a deterministic predi…
Bell inequalities from outcome equalities
Ricardo Faleiro, Flavien Hirsch, Emmanuel Zambrini Cruzeiro +1
In this work, we study a particular class of Bell inequalities involving only direct equality-comparisons of outcomes. In the bipartite case, the scenario can be interpreted as a n…
Non-Interactive Oblivious Transfer and One-Time Programs from Noisy Quantum Storage
Ricardo Faleiro, Manuel Goulão, Leonardo Novo +1
Few primitives are as intertwined with the foundations of cryptography as Oblivious Transfer (OT). Not surprisingly, with the advent of quantum information processing, a major rese…
Optical payload design for downlink quantum key distribution and keyless communication using CubeSats
Pedro Neto Mendes, Gonçalo Lobato Teixeira, David Pinho +6
Quantum key distribution is costly and, at the moment, offers low performance in space applications. Other more recent protocols could offer a potential practical solution to this…