Does Quantum Nonlocality Exist? Bell's Theorem and the Many-Worlds Interpretation

Abstract

Quantum nonlocality may be an artifact of the assumption that observers obey the laws of classical mechanics, while observed systems obey quantum mechanics. I show that, at least in the case of Bell's Theorem, locality is restored if observed and observer are both assumed to obey quantum mechanics, as in the Many-Worlds Interpretation. Using the MWI, I shall show that the apparently "non-local" expectation value for the product of the spins of two widely separated particles --- the "quantum" part of Bell's Theorem --- is really due to a series of three purely local measurements. Thus, experiments confirming "nonlocality" are actually confirming the MWI.

7 pages in plain TeX, no figures

Cited by in corpus (9)

• An Introduction to QBism with an Application to the Locality of Quantum Mechanics
• The EPR paradox, Bell's inequality, and the question of locality
• Observers and Locality in Everett Quantum Field Theory
• Decision theory and information propagation in quantum physics
• Locality in the Everett Interpretation of Heisenberg-Picture Quantum Mechanics
• Locality in the Everett Interpretation of Quantum Field Theory
• Quantum Mechanics and Nonlocality: In Search of Instructive Description
• Classical simulators of quantum computers and no-go theorems
• On the Work of Henry P. Stapp