Quantum correlations between separated particles
arXiv:quant-ph/0304186
Abstract
Long-range quantum correlations between particles are usually formulated by assuming the persistence of an entangled state after the particles have spearated. Here this approach is re-examined based upon studying the correlations present in a pair of EPR spins. Two types of correltions are identified. The first, due to the quantum interference terms is parity. This symmetry property characterizes entanglement. Second is correlation due to conservation of angular momentum. The two contributions are equal and have the same functional form. When entanglement is present, Bell's inequalities are violated but when parity is destroyed by disentanglement, Bell's inequalities are satisfied. It is shown tht some experiments which have hiterto been interpreted by entangled states can be better described by disentanglement. Implications for quantum non-locality are discussed.
Paper is old, out of date, has some errors and has been replaced by arXiv:2503.22761v1
References in corpus (5)
- Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolski-Rosen Channels
- Violation of Bell's inequality under strict Einstein locality conditions
- Violation of Bell inequalities by photons more than 10 km apart
- Experimental investigation of continuous variable quantum teleportation
- Interpretation of "non-local" experiments using disentanglement