Description: In 1976, a conference called "Fifty Years of Quantum Mechanics" was held at the University of Louis Pasteur, Strasbourg. It was attended by more than a dozen physicists, including a young French scientist, Jean Marc Levy-Leblond. Wheeler's presentation was called, "Include the Observer in the Wave Function?'' Wheeler had a history of vacillating on Everett's theory, but now, 20 years after he had endorsed it in Reviews of Modern Physics, he rejected Everett's inclusion of the observer in the wave function, essentially upholding the Copenhagen interpretation. In 1977, Jean Marc Levy-Leblond wrote a letter to Everett, including a copy of a paper he had presented at the conference that compared DeWitt's and Everett's views. Everett responded by agreeing with Levy-Leblond's analysis of the differences between the two views. Everett especially liked the short spoof of foundational writing in physics (on "zipperdynamics'') that LeBlond had tacked onto the end of his paper. This document is Everett's reply to Levy-Leblond, including an earlier rough draft.
Rights: This material is provided for private study, scholarship, or research. Transmission or reproduction of any material protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners and Professor Jeffrey A. Barrett. The author(s) of the material or their heirs retain copyright to this material.
Used with the permission of the estate of Hugh Everett, III.
Provenance: This document is a reproduction of a document found at the Hugh Everett archive, American Institute of Physics.
Publisher: University of California, Irvine Libraries. Irvine, California 92623-9557. http://www.lib.uci.edu.