Entanglement, bell nonlocality, and physical principles for quantum theory

• Grant number: 18/07258-7
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: September 01, 2018
• End date: March 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Rafael Luiz da Silva Rabelo
• Grantee: Rafael Luiz da Silva Rabelo
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated scholarship(s): 22/03792-4 - Bell nonlocality on quantum networks, BP.MS; 21/13798-7 - Certification of local entangled states, BP.MS; 22/00592-4 - Activation of nonlocality in quantum networks, BP.IC; + associated scholarships 21/10548-0 - Relations between correlations: entanglement, incompatibility, nonlocality and contextuality in quantum systems, BP.DR; 21/05981-6 - On almost quantum correlations, BP.MS; 21/01502-6 - Bell nonlocality and Kochen-Specker contextuality, BP.MS; 20/06925-0 - Non-bilocality in quantum networks, BP.IC; 19/15014-3 - Measurement compatibility in Bell nonlocality tests, BP.MS; 19/00451-9 - New criteria for the information causality principle, BP.MS - associated scholarships

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)

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, FEB 25 2021. (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, OCT 3 2019. (18/07258-7)

POLLYCENO, LUCAS; CHAVES, RAFAEL; RABELO, RAFAEL. Information causality in multipartite scenarios. PHYSICAL REVIEW A, v. 107, n. 4, p. 11-pg., 2023-04-07. (19/00451-9, 18/07258-7)

TEMISTOCLES, TASSIUS; RABELO, RAFAEL; CUNHA, MARCELO TERRA. Measurement compatibility in Bell nonlocality tests. PHYSICAL REVIEW A, v. 99, n. 4, p. 10-pg., 2019-04-22. (18/07258-7)

TEMISTOCLES, TASSIUS; RABELO, RAFAEL; CUNHA, MARCELO TERRA. Measurement compatibility in Bell nonlocality tests. Physical Review A, v. 99, n. 4, APR 22 2019. (18/07258-7)

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, p. 11-pg., 2021-02-25. (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., 2023-04-20. (18/07258-7, 22/03792-4)

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, JUL 20 2021. (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, FEB 3 2022. (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., 2023-01-23. (21/01502-6, 18/07258-7, 21/10548-0)