Buscar
Mostrando ítems 41-50 de 80
Artículo
Converting contextuality into nonlocality
(American Physical Society, 2021-08)
We introduce a general method which converts, in a unified way, any form of quantum contextuality, including any form of state-dependent contextuality, into a quantum violation of a bipartite Bell inequality. As an example, ...
Artículo
El puzle de la teoría cuántica. ¿Es posible zanjar científicamente el debate sobre la naturaleza del mundo cuántico?
(Prensa Científica, 2017)
La mecánica cuántica choca con algunas de nuestras intuiciones más arraigadas acerca del mundo físico. A lo largo de la historia, esa situación ha generado un continuo debate acerca de su significado. Un enfoque tradicional ...
Artículo
Loophole-free Bell tests with randomly chosen subsets of measurement settings
(American Physical Society, 2024-02-06)
There are bipartite quantum nonlocal correlations requiring very low detection efficiency to reach the loophole-free regime but that need too many measurement settings to be practical for actual experiments. This leads to ...
Libro
La curiosidad y el universo.
(Editorial Universidad de Sevilla, 2015)
Las respuestas a preguntas formuladas por niños (¿Por qué el cielo es azul? ¿Cuál es el trozo más pequeño que existe? ¿Dónde acaba el cielo?) sirven para reflexionar sobre el estado actual de nuestro conocimiento del ...
Artículo
Experimental implementation of a Kochen-Specker Set of Quantum Tests
(American Physical Society, 2013)
The conflict between classical and quantum physics can be identified through a series of yes-no tests onquantum systems, without it being necessary that these systems be in special quantum states. Kochen-Specker (KS) sets ...
Artículo
The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios
(The Royal Society, 2024)
A necessary condition for the probabilities of a set of events to exhibit Bell nonlocality or Kochen-Specker contextuality is that the graph of exclusivity of the events contains induced odd cycles with five or more vertices, ...
Artículo
All-versus-nothing proof of Einstein-Podolsky-Rosen steering
(Nature Research, 2013-07-05)
Einstein-Podolsky-Rosen steering is a form of quantum nonlocality intermediate between entanglement and Bell nonlocality. Although Schro¨dinger already mooted the idea in 1935, steering still defies a complete understanding. ...
Artículo
Sustained state-independent quantum contextual correlations from a single ion
(American Physical Society, 2018-05)
We use a single trapped-ion qutrit to demonstrate the quantum-state-independent violation of noncontextuality inequalities using a sequence of randomly chosen quantum nondemolition projective measurements. We concatenate ...
Artículo
Tracking the dynamics of an ideal quantum measurement
(American Physical Society, 2020-02-25)
The existence of ideal quantum measurements is one of the fundamental predictions of quantum mechanics. In theory, an ideal measurement projects a quantum state onto the eigenbasis of the measurement observable, while ...
Ponencia
Weak measurements for reutilizing entanglement
(2020)
Weak measurements are a relevant tool for quantum information because they allow tuning the disturbance on the observed state and the amount of information extracted from it. They can be used to harness repeatedly a quantum ...