Bell Correlations from Prepared Coherence in Entangled Dirac Wavepackets

Abstract

Bell correlations are usually formulated for an ideal spin singlet, for which the Bell--CHSH combination reaches the maximal quantum value \(B=-2\sqrt{2}\), independent of detector separation. Here we derive Bell correlations from a more general physical state: an antisymmetrized pair of entangled Dirac wavepackets with source-prepared amplitude and phase coherence. The propagated branches are sampled locally by spatially separated endpoint detectors, yielding a separation-dependent CHSH value \(B(Z)\). For a fixed CHSH analyzer geometry, the zero-separation, full-overlap limit gives \[ B(0)=-2\sqrt{2}, \] independent of the preparation parameters. At large detector separation, once the direct branch-overlap contribution is suppressed, the surviving Bell--CHSH value approaches the prepared-coherence kernel \[ B(\infty)=\mathcal{K}_{\rm coh} = -\sqrt{2}\left[1+\sin(2θ)\cosχ\right]. \] Thus the asymptotic Bell value is controlled by the coherence fixed at the source through the amplitude balance \(θ\) and relative phase \(χ\). Bell violation is therefore a phase-sensitive local readout of prepared nonseparable Dirac-wave coherence: it rules out separable classical probability, but does not by itself require superluminal causation. In this wave-realist account, Bell correlations retain their full quantum content while remaining compatible with relativistic causal locality.