Quantum Structures of a Model-Universe: An Inconsistency with Everett Interpretation of Quantum Mechanics

TL;DR

This paper challenges the Everett interpretation by demonstrating that quantum branching cannot be consistently applied across different structures in a quantum universe model, due to entanglement relativity and decoherence issues.

Contribution

It introduces a model showing that world-branching is incompatible with multiple irreducible structures, questioning the universality of Everett's interpretation.

Findings

Everett world-branching excludes alternative structures

No emergent structure can approximate multiple structures

The model cannot be fully described by Everett interpretation

Abstract

We observe a Quantum Brownian Motion (QBM) Model Universe in conjunction with recently established Entanglement Relativity and Parallel Occurrence of Decoherence. The Parallel Occurrence of Decoherence establishes the simultaneous occurrence of decoherence for two mutually irreducible structures (decomposition into subsystems) of the total QBM model universe. First we find that Everett world branching for one structure excludes branching for the alternate structure and in order to reconcile this situation branching cannot be allowed for either of the structures considered. Second, we observe the non-existence of a third, "emergent structure", that could approximate both structures and also be allowed to branch. Ultimately we find unless world-branching requires additional criteria or conditions, or there is a privileged structure, that we provide a valid model that cannot be properly described by the Everett Interpretation of Quantum Mechanics.