Gisin's theorem

Gisin's theorem states that in quantum physics, any entangled pair of particles will violate a Bell inequality, demonstrating inherently non-classical correlations. In simple terms, if two particles are linked in a way that their properties are connected regardless of the distance separating them, then their behavior can't be explained by classical physics or local hidden variables. This theorem confirms that quantum entanglement produces correlations stronger than any possible classical explanation, highlighting the fundamental non-local nature of quantum mechanics and affirming that entangled particles are deeply interconnected in ways that defy traditional notions of separability.