TL;DR
This paper discusses the Everett interpretation of quantum mechanics, emphasizing how branching structures relate to probability, with the squares of branch amplitudes representing chances, highlighting the emergent nature of physical probability.
Contribution
It clarifies the interpretation of probability within the Everett framework, linking branching processes to chance and emphasizing their emergent properties.
Findings
Branching processes are identified as chance processes.
Squares of branch amplitudes are interpreted as chances.
Physical probability emerges from the branching structure.
Abstract
The Everett interpretation of quantum mechanics divides naturally into two parts: first, the interpretation of the structure of the quantum state, in terms of branching, and second, the interpretation of this branching structure in terms of probability. This is the second of two reviews of the Everett interpretation, and focuses on probability. Branching processes are identified as chance processes, and the squares of branch amplitudes are chances. Since branching is emergent, physical probability is emergent as well.
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