5 papers
Semi-device-independent certification of entanglement in superdense coding
George Moreno, Ranieri Nery, Carlos de Gois +2
Superdense coding is a paradigmatic protocol in quantum information science, employing a quantum communication channel to send classical information more efficiently. As we show he…
Multistage games and Bell scenarios with communication
George Moreno, Ranieri Nery, Alberto Palhares +1
Bell nonlocality is a cornerstone of quantum theory with applications in information processing ranging from cryptography to distributed computing and game theory. Indeed, it is kn…
Semidefinite tests for quantum network topologies
Johan Åberg, Ranieri Nery, Cristhiano Duarte +1
Quantum networks play a major role in long-distance communication, quantum cryptography, clock synchronization, and distributed quantum computing. Generally, these protocols involv…
Distillation of quantum steering
R. V. Nery, M. M. Taddei, P. Sahium +3
We show -- both theoretically and experimentally -- that Einstein-Podolsky-Rosen steering can be distilled. We present a distillation protocol that outputs a perfectly correlated s…
Quantum superpositions of causal orders as an operational resource
Márcio M. Taddei, Ranieri V. Nery, Leandro Aolita
Causal nonseparability refers to processes where events take place in a coherent superposition of different causal orders. These may be the key resource for experimental violations…