English

Born Again

High Energy Physics - Theory 2009-07-27 v1 Quantum Physics

Abstract

A simple proof is given that the probabilities of observations in a large universe are not given directly by Born's rule as the expectation values of projection operators in a global quantum state of the entire universe. An alternative procedure is proposed for constructing an averaged density matrix for a random small region of the universe and then calculating observational probabilities indirectly by Born's rule as conditional probabilities, conditioned upon the existence of an observation.

Keywords

Cite

@article{arxiv.0907.4152,
  title  = {Born Again},
  author = {Don N. Page},
  journal= {arXiv preprint arXiv:0907.4152},
  year   = {2009}
}

Comments

4 pages, LaTeX

R2 v1 2026-06-21T13:28:24.145Z