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Optimal and tight Bell inequalities for state-independent contextuality sets
(American Physical Society, 2023)
Two fundamental quantum resources, nonlocality and contextuality, can be connected through Bell inequalities that are violated by state-independent contextuality (SI-C) sets. These Bell inequalities allow for applications ...
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Entropic and complexity measures in atomic and molecular systems
(MDPI, 2023)
Both entropy and complexity are central concepts for the understanding and development of Information Theory, playing an essential role in the increasingly numerous applications in a huge diversity of fields. Adequate ...
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Minimal true-implies-false and true-implies-true sets of propositions in noncontextual hidden-variable theories
(American Physical Society, 2018)
An essential ingredient in many examples of the conflict between quantum theory and noncontextual hidden variables (e.g., the proof of the Kochen-Specker theorem and Hardy’s proof of Bell’s theorem) is a set of ...
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Experimental certification of an informationally complete quantum measurement in a device-independent protocol
(Optical Society of America, 2020-02)
Minimal informationally complete positive operator-valued measures (MIC-POVMs) are special kinds of measurement in quantum theory in which the statistics of their d2-outcomes are enough to reconstruct any d-dimensional ...
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Spin-texture topology in curved circuits driven by spin-orbit interactions
(Nature Research, 2023-07-22)
Interferometry is a powerful technique used to extract valuable information about the wave function of a system. In this work, we study the response of spin carriers to the effective field textures developed in curved ...
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Graph-theoretic approach to Bell experiments with low detection efficiency
(Cornell University, 2023)
Bell inequality tests where the detection efficiency is below a certain threshold ηcrit can be simulated with local hidden-variable models. For the Clauser-Horne-Shimony-Holt Bell inequality and maximally entangled states, ...
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Kochen-Specker contextuality
(American Physical Society, 2022-12-19)
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum mechanics is in conflict with classical models in which the result of a measurement does not depend ...
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On the proportion of ballast versus non-ballast associated carbon export in the surface ocean
(Wiley, 2012-08)
The role of biominerals in driving carbon export from the surface ocean is unclear. We compiled surface particulate organic carbon (POC), and mineral ballast export fluxes from 55 different locations in the Atlantic and ...
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Stronger two-observer all-versus-nothing violation of local realism
(American Physical Society, 2005-11-18)
We introduce a two-observer all-versus-nothing proof of Bell’s theorem which reduces the number of required quantum predictions from 9 [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001); Z.-B. Chen et al., Phys. Rev. Lett. ...