European Physical Journal C: Particles and Fields (Mar 2025)
Investigation of the Bell-CHSH inequality in diamond regions
Abstract
Abstract A numerical setup for the Bell-CHSH inequality for causal diamonds in $$1+1$$ 1 + 1 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.