Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12347
Title: Many worlds in one
Author: Garriga Torres, Jaume
Vilenkin, A. (Alexander)
Keywords: Cosmologia
Cosmogonia
Cosmology
Cosmogony
Issue Date: 2001
Publisher: The American Physical Society
Abstract: A generic prediction of inflation is that the thermalized region we inhabit is spatially infinite. Thus, it contains an infinite number of regions of the same size as our observable universe, which we shall denote as O regions. We argue that the number of possible histories which may take place inside of an O region, from the time of recombination up to the present time, is finite. Hence, there are an infinite number of O regions with identical histories up to the present, but which need not be identical in the future. Moreover, all histories which are not forbidden by conservation laws will occur in a finite fraction of all O regions. The ensemble of O regions is reminiscent of the ensemble of universes in the many-world picture of quantum mechanics. An important difference, however, is that other O regions are unquestionably real.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.64.043511
It is part of: Physical Review D, 2001, vol. 64, núm. 4, p. 043511-1-043511-5
URI: http://hdl.handle.net/2445/12347
ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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