How Everett Solved the Probability Problem in Everettian Quantum Mechanics

A longstanding issue in the Everettian (Many-Worlds) interpretation is to justify and make sense of the Born rule that underlies the statistical predictions of standard quantum mechanics. The paper offers a reappraisal of Everett’s original account in light of the recent literature on the concept of...

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Bibliographic Details
Main Author: Dustin Lazarovici
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Quantum Reports
Subjects:
Online Access:https://www.mdpi.com/2624-960X/5/2/26
Description
Summary:A longstanding issue in the Everettian (Many-Worlds) interpretation is to justify and make sense of the Born rule that underlies the statistical predictions of standard quantum mechanics. The paper offers a reappraisal of Everett’s original account in light of the recent literature on the concept of <i>typicality</i>. It argues that Everett’s derivation of the Born rule is sound and, in a certain sense, even an optimal result, and defends it against the charge of circularity. The conclusion is that Everett’s <i>typicality</i> argument can successfully ground post-factum explanations of Born statistics, while questions remain about the predictive power of the Many-Worlds interpretation.
ISSN:2624-960X