Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12338
Title: Classical anisotropies in models of open inflation
Author: Garriga Torres, Jaume
Mukhanov, V. F.
Keywords: Anisotropia
Teoria de camps (Física)
Anisotropy
Field theory (Physics)
Issue Date: 1997
Publisher: The American Physical Society
Abstract: In the simplest model of open inflation there are two inflaton fields decoupled from each other. One of them, the tunneling field, produces a first stage of inflation which prepares the ground for the nucleation of a highly symmetric bubble. The other, a free field, drives a second period of slow-roll inflation inside the bubble. However, the second field also evolves during the first stage of inflation, which to some extent breaks the needed symmetry. We show that this generates large supercurvature anisotropies which, together with the results of Tanaka and Sasaki, rule out this class of simple models (unless, of course, Omega0 is sufficiently close to 1). The problem does not arise in modified models where the second field does not evolve in the first stage of inflation.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.56.2439
It is part of: Physical Review D, 1997, vol. 56, núm. 4, p. 2439
URI: http://hdl.handle.net/2445/12338
ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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