Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Time, measurement and information loss in quantum cosmology

Lee Smolin

Abstract

An error in the gauge fixed quantization of section 3 is corrected. The result is a much simpler treatment of the clock field, leading to a simplification of the gauge fixed quantum theory and the treatment of the semiclassical limit.

Time, measurement and information loss in quantum cosmology

Abstract

An error in the gauge fixed quantization of section 3 is corrected. The result is a much simpler treatment of the clock field, leading to a simplification of the gauge fixed quantum theory and the treatment of the semiclassical limit.

Paper Structure

This paper contains 24 sections, 75 equations.

Table of Contents

  1. Introduction
  2. A quantum reference system
  3. Some operators invariant under spatial diffeomorphisms
  4. Construction of the quantum reference system
  5. How do we describe the results of the measurements?
  6. The spatially diffeomorphism invariant inner product
  7. Physical observables and the problem of time
  8. A classical model of a clock
  9. Quantization of the theory with the time field
  10. The operators of the gauge fixed theory
  11. The physical interpretation and inner product of the gauge fixed theory
  12. A word about unitarily
  13. The physical quantum theory without gauge fixing
  14. Outline of a measurement theory for quantum cosmology
  15. Preparation in quantum cosmology
  16. ...and 9 more sections