Jump to ContentJump to Main Navigation
The Emergent MultiverseQuantum Theory according to the Everett Interpretation$
Users without a subscription are not able to see the full content.

David Wallace

Print publication date: 2012

Print ISBN-13: 9780199546961

Published to Oxford Scholarship Online: September 2012

DOI: 10.1093/acprof:oso/9780199546961.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2020. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 03 June 2020

Chaos, Decoherence, and Branching

Chaos, Decoherence, and Branching

(p.64) 3 Chaos, Decoherence, and Branching
The Emergent Multiverse

David Wallace

Oxford University Press

This chapter is concerned with the technical details of how emergent branching occurs in the Everett interpretation. Accordingly, its focus is on decoherence theory, the branch of quantum physics which studies the effects on macroscopic degrees of freedom of their environment (whether that environment is internal or external). The chapter reviews decoherence theory in a self-contained manner, beginning with the ‘environment-induced decoherence’ approach developed by Joos, Zeh and zurek, and moving on to the more abstract approach of Gell-Mann, Hartle, and Halliwell. The chapter shows that decoherence, in the context of the Everett interpretation, does indeed cause the quantum world to develop an emergent branching structure, though this branching structure is continuous and resists any attempt to quantify the precise number of branches.

Keywords:   Everett interpretation, many worlds, emergence, decoherence, chaos theory, consistent histories

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .