A Local-Realistic Quantum Mechanical Model of Spin and Spin Entanglement

TL;DR

This paper presents a local-realistic stochastic model that reproduces quantum spin and entanglement results, including Bell inequality violations, by exploiting the coincidence loophole, challenging traditional interpretations of quantum nonlocality.

Contribution

It introduces a novel local and realist model capable of replicating quantum spin phenomena and Bell test results without relying on standard quantum formalism.

Findings

Model reproduces QM spin and entanglement results

Violates Bell--CHSH inequalities via the coincidence loophole

Maintains locality and realism in the simulation

Abstract

This paper aims at reproducing quantum mechanical (QM) spin and spin entanglement results using a realist, stochastic, and local approach, without the standard QM mathematical formulation. The concrete model proposed includes the description of Stern-Gerlach apparatuses and of Bell test experiments. Single particle trajectories are explicitly evaluated as a function of a few stochastic variables that they assumedly carry on. QM predictions re retrieved as probability distributions of similarly-prepared ensembles of particles. Notably, it is shown that the proposed model, despite being both local and realist, is able to violate the Bell--CHSH inequalities by exploiting the coincidence loophole and thus intrinsically renouncing to one of the Bell's assumptions.