Work

Bell-CHSH inequality and unitary operators

Year: 2024

Type: article

Abstract: Unitary operators are employed to investigate the violation of the Bell-CHSH inequality. The ensuing modifications affecting both classical and quantum bounds are elucidated. The relevance of a particular class of unitary operators whose expectation values are real is pointed out. For these operators, the classical and quantum bounds remain unaltered, being given, respectively, by 2 and 2 2 . As examples, we discuss the explicit realization of phase space Bell-CHSH inequality violation and the Weyl unitary operators for a real scalar field in relativistic Quantum Field Theory.

Source: Nuclear Physics B

DOI: 10.1016/j.nuclphysb.2024.116717

Authors: M.S. Guimaraes, I. Roditi, S.P. Sorella

Institutions: Universidade do Estado do Rio de Janeiro, Centro Brasileiro de Pesquisas Físicas

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico