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Mostrando ítems 1-10 de 29
Artículo
Ruling out real-valued standard formalism of quantum theory
(American Physical Society, 2022)
Artículo
Self-testing of a single quantum system from theory to experiment
(Nature Research, 2023-10-19)
Self-testing allows one to characterise quantum systems under minimal assumptions. However, existing schemes rely on quantum nonlocality and cannot be applied to systems that are not entangled. Here, we introduce a robust ...
Artículo
Bell nonlocality with intensity information only
(American Physical Society, 2020-09-01)
We address the problem of detecting bipartite Bell nonlocality whenever the only experimental information are the intensities produced in each run of the experiment by an unknown number of particles. We point out that this ...
Artículo
Device-independent quantum key distribution based on Bell inequalities with more than two inputs and two outputs
(American Physical Society, 2021-05-28)
Device-independent quantum key distribution (DI-QKD) offers the strongest form of security against eavesdroppers bounded by the laws of quantum mechanics. However, a practical implementation is still pending due to the ...
Artículo
Significant loophole-free test of Kochen-Specker contextuality using two species of atomic ions
(American Association for the Advancement of Science, 2022-02-09)
Quantum measurements cannot be thought of as revealing preexisting results, even when they do not disturb any other measurement in the same trial. This feature is called contextuality and is crucial for the quantum advantage ...
Artículo
Irreducible magic sets for n-Qubit systems
(Physical Review Letters, 2022-11-07)
Magic sets of observables are minimal structures that capture quantum state-independent advantage for systems of n ≥ 2 qubits and are, therefore, fundamental tools for investigating the interface between classical and ...
Artículo
Multidimensional entanglement generation with multicore optical fibers
(American Physical Society, 2021-03-09)
Trends in photonic quantum information follow closely the technical progress in classical optics and telecommunications. In this regard, advances in multiplexing optical communications channels have also been pursued for ...
Artículo
Bosonic indistinguishability-dependent contextuality
(American Physical Society, 2022)
Producing contextual correlations in sequences of measurements on single quantum systems faces two major problems. One is the experimental difficulty of performing sequences of ideal measurements on highdimensional quantum ...
Artículo
Las medidas ideales y el problema de entender la mecánica cuántica
(Real Sociedad Española de Física, 2021)
Uno de los problemas más antiguos de la física moderna es de dónde viene la mecánica cuántica. La observación de la importancia que tienen en Física las cantidades conservadas y los observables que se pueden medir repetidamente ...
Artículo
Graph-theoretic approach for self-testing in Bell scenarios
(American Physical Society, 2022-09-26)
Self-testing is a technology to certify states and measurements using only the statistics of the experiment. Self-testing is possible if some extremal points in the set BQ of quantum correlations for a Bell experiment are ...