Daily briefing: Why the many-worlds interpretation of quantum mechanics is seductive, but wrong

Flora Graham

Lev Vaidman A

A brief (subjective) description of the state of the art of the many-worlds interpretation of quantum mechanics (MWI) is presented. It is argued that the MWI is the only interpretation which removes action at a distance and randomness from quantum theory. Limitations of the MWI regarding questions of probability which can be legitimately asked are specified. The ontological picture of the MWI as a theory of the universal wave function decomposed into a superposition of world wave functions, the important parts of which are defined in three-dimensional space, is presented from the point of view of our particular branch. Some speculations about misconceptions, which apparently prevent the MWI from being in the consensus, are mentioned.

Mateusz Ratman

This article attempts to present brief outlines of the leading interpretations of quantum mechanics. Many-worlds, relational, von Neumann–Wigner, Copenhagen and hidden variable are examined. Arguments in favor of the many-worlds interpretation are put forth, stressing the importance of further research into the fundamentals of quantum mechanics during work on quantum gravity. The history and fundamental principles of each interpretation are briefly given.

Jeffrey Bub

Jacob Smith

A Nature survey reveals that physicists disagree on even the basics of what quantum mechanics means in reality. Plus, sugars on a cell’s surface mapped at unprecedented resolution and the world’s wildest biology conference. A Nature survey reveals that physicists disagree on even the basics of what quantum mechanics means in reality. Plus, sugars on a cell’s surface mapped at unprecedented resolution and the world’s wildest biology conference.