title: Quantum probability assignment limited by relativistic causality.
abstract: Quantum theory has nonlocal correlations, which bothered Einstein, but found to satisfy relativistic causality. Correlation for a shared quantum state manifests itself, in the standard quantum framework, by joint probability distributions that can be obtained by applying state reduction and probability assignment that is called Born rule. Quantum correlations, which show nonlocality when the shared state has an entanglement, can be changed if we apply different probability assignment rule. As a result, the amount of nonlocality in quantum correlation will be changed. The issue is whether the change of the rule of quantum probability assignment breaks relativistic causality. We have shown that Born rule on quantum measurement is derived by requiring relativistic causality condition. This shows how the relativistic causality limits the upper bound of quantum nonlocality through quantum probability assignment.
authors.affiliation: Department of Computer Science and Engineering, Woosuk University, Wanju, Cheonbuk, 565-701, Korea.
authors.forename: Yeong Deok
authors.initials: YD
authors.lastname: Han
authors.affiliation: Division of Applied Food System, College of Natural Science, Seoul Women's University, Seoul 139-774, Korea.|School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-012, Korea.
authors.forename: Taeseung
authors.initials: T
authors.lastname: Choi