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Artículo
All-Versus-Nothing Proof of Einstein-Podolsky-Rosen Steering
(Nature Publishing Group, 2013)
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
Quantum Information and Entanglement
(Hindawi Publishing Corporation, 2010)
Artículo
Quantum randomness protected against detection loophole attacks
(Springer, 2021-01-18)
Device and semi-device-independent private quantum randomness generators are crucial for applications requiring private randomness. However, they are vulnerable to detection inefficiency attacks and this limits severely ...
Artículo
No-hidden-variables proof for two spin-1/2 particles preselected and postselected in unentangled states
(American Physical Society, 1997-06-01)
It is a well-known fact that all the statistical predictions of quantum mechanics on the state of any physical system represented by a two-dimensional Hilbert space can always be duplicated by a noncontextual hidden-variables ...
Artículo
Bell non-locality and Kochen-Specker contextuality: how are they connected?
(Springer, 2021-05-22)
Bell non-locality and Kochen–Specker (KS) contextuality are logically independent concepts, fuel different protocols with quantum vs classical advantage, and have distinct classical simulation costs. A natural question is ...
Artículo
Single-photon quantum contextuality on a chip
(American Chemical Society, 2017-10-17)
In classical physics, properties of objects exist independently of the context, i.e., whether and how measurements are performed. Quantum physics showed this assumption to be wrong, and that Nature is indeed “contextual”. ...
Artículo
Experimental observation of quantum state-independent contextuality under no-signaling conditions
(OSA Publishing, 2018-01)
Contextuality, the impossibility of assigning context-independent measurement outcomes, is a critical resource for quantum computation and communication. No-signaling betweensuccessivemeasurementsisanessentialrequirement ...
Artículo
Quantum correlations from simple assumptions
(American Physical Society, 2019-09-24)
We address the problem of deriving the set of quantum correlations for every Bell and Kochen-Specker (KS) contextuality scenario from simple assumptions. We show that the correlations that are possible according to quantum ...
Artículo
Device-independent certification of two bits of randomness from one entangled bit and Gisin's elegant Bell inequality
(American Physical Society, 2018-01-16)
We prove that as conjectured by Acín et al. [Phys. Rev. A 93, 040102(R) (2016)], two bits of randomness can be certified in a device-independent way from one bit of entanglement using the maximal quantum violation of Gisin’s ...
Artículo
Experimental test of high-dimensional quantum contextuality based on contextuality concentration
(American Physical Society, 2023-06-13)
Contextuality is a distinctive feature of quantum theory and a fundamental resource for quantum computation. However, existing examples of contextuality in high-dimensional systems lack the necessary robustness required ...