Quantum Structures of a Model-Universe: Questioning the Everett Interpretation of Quantum Mechanics

TL;DR

This paper challenges the Everett interpretation of quantum mechanics by revealing inconsistencies related to entanglement and decoherence in the Quantum Brownian Motion model, questioning the physical reality of many worlds.

Contribution

It demonstrates an inconsistency in the Everett interpretation by analyzing entanglement relativity and decoherence within the QBM model, suggesting the need for a privileged structure or rejection of many worlds.

Findings

Identifies an inconsistency in Everettian interpretations

Highlights the necessity of a privileged spatial structure or rejection of many worlds

Questions the physical reality of Everettian worlds

Abstract

Our objective is to demonstrate an inconsistency with both the original and modern Everettian Many Worlds Interpretations. We do this by examining two important corollaries of the universally valid quantum mechanics in the context of the Quantum Brownian Motion (QBM) model: "Entanglement Relativity" and the "parallel occurrence of decoherence." We conclude that the highlighted inconsistency demands that either there is a privileged spatial structure of the QBM model universe or that the Everettian Worlds are not physically real.