English

Inequality-free proof of Bell's theorem

Quantum Physics 2025-03-10 v3 Optics

Abstract

Bell's theorem supposedly demonstrates an irreconcilable conflict between quantum mechanics and local, realistic hidden variable theories. Most proofs of Bell's theorem, are based on inequalities. In this paper we present an alternative proof which does not involve inequalities, but only a direct comparison between correlation functions calculated using quantum mechanics on the one hand, and those calculated according to local realistic hidden-variable theories on the other. Our proof is based on a physically motivated use of Fourier series for periodic functions, and confirms that local realistic hidden-variable theories are incompatible with quantum mechanics.

Keywords

Cite

@article{arxiv.2410.17912,
  title  = {Inequality-free proof of Bell's theorem},
  author = {Andrea Aiello},
  journal= {arXiv preprint arXiv:2410.17912},
  year   = {2025}
}

Comments

6 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:2409.01275