Entanglement and maximal violation of the CHSH inequality in a system of two spins j: A novel construction and further observations

G Peruzzo,S.P Sorella

doi:10.1016/j.physleta.2023.128847

Entanglement and maximal violation of the CHSH inequality in a system of two spins j: A novel construction and further observations

G Peruzzo, S.P Sorella

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https://doi.org/10.1016/j.physleta.2023.128847

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Journal: Physics Letters A	Publication Date: Apr 14, 2023
Citations: 3

Affiliation: Universidade Federal Fluminense, Rio de Janeiro State University

#Tsirelson's Bound #CHSH Inequality + Show 7 more

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Abstract

We study the CHSH inequality for a system of two spin j particles, for generic j. The CHSH operator is constructed using a set of unitary, Hermitian operators {A1,A2,B1,B2}. The expectation value of the CHSH operator is analyzed for the singlet state |ψs〉. Being |ψs〉 an entangled state, a violation of the CHSH inequality compatible with Tsirelson's bound is found. Although the construction employed here differs from that of [1], full agreement is recovered.

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