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Artículo
Basic exclusivity graphs in quantum correlations
(American Physical Society, 2013)
A fundamental problem is to understand why quantum theory only violates some noncontextuality (NC) inequalities and identify the physical principles that prevent higher-than-quantum violations. We prove that quantum ...
Artículo
All noncontextuality inequalities for the n -cycle scenario
(American Physical Society, 2013-08-21)
The problem of separating classical from quantum correlations is, in general, intractable and has been solved explicitly only in a few cases. In particular, known methods cannot provide general solutions for an arbitrary ...
Artículo
Two fundamental experimental tests of nonclassicality with qutrits
(Nature Research, 2013-07-10)
We report two fundamental experiments on three-level quantum systems (qutrits). The first one tests the simplest task for which quantum mechanics provides an advantage with respect to classical physics. The quantum advantage ...
Artículo
Characterisation of the intra-annual rainfall and its evolution (1837-2010) in the southwest of the Iberian Peninsula
(Springer Nature, 2013)
Variability in precipitation affects annual total records and causes instability in rainfall distribution throughout the year. Our aim in this study was to develop a procedure, based on pluviometric centralisation and ...
Artículo
Control of the spin geometric phase in semiconductor quantum rings
(Springer Natur, 2013)
Since the formulation of the geometric phase by Berry, its relevance has been demonstrated in a large variety of physical systems. However, a geometric phase of the most fundamental spin-1/2 system, the electron spin, ...
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
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
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
Changes in the Erica ciliaris Loefl. ex L. peat bogs of southwestern Europe from the 17th to the 20th centuries ad
(SAGE, 2013)
This paper analyses a reconstruction of changes from the 17th to the 20th centuries in peat bogs with Erica ciliaris Loefl. ex L. heathlands in southwestern Europe. The reconstruction is performed by means of a multidisciplinary ...
Artículo
Two fundamental experimental tests of nonclassicality with qutrits
(Nature Publishing Group, 2013)
We report two fundamental experiments on three-level quantum systems (qutrits). The first one tests the simplest task for which quantum mechanics provides an advantage with respect to classical physics. The quantum ...