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Artículo
Device-independent tests of structures of measurement incompatibility
(American Physical Society, 2019-10-31)
In contrast with classical physics, in quantum physics some sets of measurements are incompatible in the sense that they cannot be performed simultaneously. Among other applications, incompatibility allows for contextuality ...
Artículo
Quantum Clock Synchronization with a Single Qudit
(Nature Publishing Group, 2015)
Clock synchronization for nonfaulty processes in multiprocess networks is indispensable for a variety of technologies. A reliable system must be able to resynchronize the nonfaulty processes upon some components failing ...
Artículo
Loophole-Free Bell Test based on local precertification of Photon’s Presence
(American Physical Society, 2012)
A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating quantumnonlocality and long-distance device-independent secure communication. However, transmission lossesrepresent a fundamental ...
Artículo
Experimental demonstration of the connection between quantum contextuality and graph theory
(American Physical Society, 2016-07-20)
We report a method that exploits a connection between quantum contextuality and graph theory to reveal any form of quantum contextuality in high-precision experiments. We use this technique to identify a graph which ...
Artículo
Noncontextual wirings
(American Physical Society, 2018-03-29)
Contextuality is a fundamental feature of quantum theory necessary for certain models of quantum computation and communication. Serious steps have therefore been taken towards a formal framework for contextuality as an ...
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
Necessary and sufficient condition for contextuality from incompatibility
(American Physical Society, 2019-02-12)
Measurement incompatibility is the most basic resource that distinguishes quantum from classical physics. Contextuality is the critical resource behind the power of some models of quantum computation and is also a necessary ...
Artículo
Experimental test of quantum correlations from Platonic graphs
(Optica Publishing Group, 2018-05-29)
Great effort has been made in the investigation of contextual correlations between compatible observables due to their both fundamental and practical importance. The graph-theoretic approach to correlate events has been ...
Artículo
Loophole-free bell test based on local precertification of photon’s presence
(American Physical Society, 2012-06-11)
A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating quantum nonlocality and long-distance device-independent secure communication. However, transmission losses represent a fundamental ...
Artículo
Experimental fully contextual correlations
(American Physical Society, 2012)
Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations. We identify and test a noncontextuality inequality in which the quantum violation cannot be improved ...