3 papers
quant-ph2026
Non-signaling assistance in prepare-and-measure scenarios with classical communication
José Nogueira, Carlos Vieira, Lucas E. A. Porto +3
Extracting the full power of non-local correlations in prepare-and-measure (PM) scenarios requires precise control over the timing and structure of the receiver's measurements. Ind…
quant-ph2024
Unexpected consequences of Post-Quantum theories in the graph-theoretical approach to correlations
José Nogueira, Carlos Vieira, Marcelo Terra Cunha
This work explores the implications of the exclusivity principle (EP) in the context of quantum and postquantum correlations. We first establish a key technical result demonstratin…
quant-ph2024
Test of the physical significance of Bell nonlocality
Carlos Vieira, Ravishankar Ramanathan, Adán Cabello
Loophole-free violations of Bell inequalities imply that at least one of the assumptions behind local hidden-variable theories must fail. Here, we show that, if only one fails, the…