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Entanglement, bell nonlocality, and physical principles for quantum theory

Abstract

Quantum theory is one of the most controversial and well succeeded scientific theories ever developed. Controversial because there is no consensus regarding the physical meaning of its most fundamental objects, a century after its creation; and well succeeded because its predictions have been confirmed with unprecedented precision. A research field that is referred as foundations of quantum theory has been gaining importance by dealing, at the same time, with these two apparently contradictory facets of the theory, investigating its particulars from operational aspects, and identifying fundamental concepts as resources for quantum information processing. This project contextualizes and describes research activities on the foundations of quantum theory and quantum information theory. Two central objectives are highlighted: (i) to investigate and better understand the relations between entanglement and Bell nonlocality, distinct concepts that, however, are intrinsically connected; (ii) to investigate the validity and extension of the information causality principle as a physical principle of quantum theory by means of the developments of new methods and criteria. From the scientific point of view, results from this project would have impact not only as advances on fundamental questions of quantum theory, but also as potential applications in quantum information theory. From the institutional point of view, this project would mean the first and important step towards the development and establishment of foundations of quantum theory research group at Instituto de Física "Gleb Wataghin". (AU)

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Scientific publications (10)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MORENO, GEORGE; NERY, RANIERI; DE GOIS, CARLOS; RABELO, RAFAEL; CHAVES, RAFAEL. Semi-device-independent certification of entanglement in superdense coding. Physical Review A, v. 103, n. 2, . (18/07258-7)
POZAS-KERSTJENS, ALEJANDRO; RABELO, RAFAEL; RUDNICKI, LUKASZ; CHAVES, RAFAEL; CAVALCANTI, DANIEL; NAVASCUES, MIGUEL; ACIN, ANTONIO. Bounding the Sets of Classical and Quantum Correlations in Networks. Physical Review Letters, v. 123, n. 14, . (18/07258-7)
POLLYCENO, LUCAS; CHAVES, RAFAEL; RABELO, RAFAEL. Information causality in multipartite scenarios. HYSICAL REVIEW, v. 107, n. 4, p. 11-pg., . (19/00451-9, 18/07258-7)
TEMISTOCLES, TASSIUS; RABELO, RAFAEL; CUNHA, MARCELO TERRA. Measurement compatibility in Bell nonlocality tests. HYSICAL REVIEW, v. 99, n. 4, p. 10-pg., . (18/07258-7)
MORENO, GEORGE; NERY, RANIERI; DE GOIS, CARLOS; RABELO, RAFAEL; CHAVES, RAFAEL. Semi-device-independent certification of entanglement in superdense coding. HYSICAL REVIEW, v. 103, n. 2, p. 11-pg., . (18/07258-7)
DE GOIS, CARLOS; MORENO, GEORGE; NERY, RANIERI; BRITO, SAMURAI; CHAVES, RAFAEL; RABELO, RAFAEL. General Method for Classicality Certification in the Prepare and Measure Scenario. PRX QUANTUM, v. 2, n. 3, . (18/07258-7)
HO, JOSEPH; MORENO, GEORGE; BRITO, SAMURAI; GRAFFITTI, FRANCESCO; MORRISON, CHRISTOPHER L.; NERY, RANIERI; PICKSTON, ALEXANDER; PROIETTI, MASSIMILIANO; RABELO, RAFAEL; FEDRIZZI, ALESSANDRO; et al. ntanglement-based quantum communication complexity beyond Bell nonlocalit. NPJ QUANTUM INFORMATION, v. 8, n. 1, . (18/07258-7)
LAUAND, PEDRO; PODERINI, DAVIDE; NERY, RANIERI; MORENO, GEORGE; POLLYCENO, LUCAS; RABELO, RAFAEL; CHAVES, RAFAEL. Witnessing Nonclassicality in a Causal Structure with Three Observable Variables. PRX QUANTUM, v. 4, n. 2, p. 18-pg., . (18/07258-7, 22/03792-4)
TEMISTOCLES, TASSIUS; RABELO, RAFAEL; CUNHA, MARCELO TERRA. Measurement compatibility in Bell nonlocality tests. Physical Review A, v. 99, n. 4, . (18/07258-7)
XUE, PENG; XIAO, LEI; RUFFOLO, G.; MAZZARI, A.; TEMISTOCLES, T.; CUNHA, M. TERRA; RABELO, R.. Synchronous Observation of Bell Nonlocality and State-Dependent Contextuality. Physical Review Letters, v. 130, n. 4, p. 6-pg., . (21/01502-6, 18/07258-7, 21/10548-0)

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