https://doi.org/10.1140/epjc/s10052-025-14058-4
Letter
Investigation of the Bell-CHSH inequality in diamond regions
1
UERJ-Universidade do Estado do Rio de Janeiro, Instituto de Física-Departamento de Física Teórica, Rua São Francisco Xavier 524, Maracanã, 20550-013, Rio de Janeiro, Brazil
2
CBPF-Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180, Rio de Janeiro, Brazil
3
Institute for Theoretical Physics, ETH Zürich, 8093, Zurich, Switzerland
Received:
3
December
2024
Accepted:
6
March
2025
Published online:
24
March
2025
A numerical setup for the Bell-CHSH inequality for causal diamonds in 
Minkowski spacetime is presented. Upon choosing a suitable set of test functions supported in the diamonds, sensible violations are reported for the correlation function of Weyl operators of a real scalar massive field in the vacuum state.
© The Author(s) 2025
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