Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

507984.pdf (81.63 KB)

Document type

Article

Version

Published version

Publication date

1997

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12338

Classical anisotropies in models of open inflation

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1103/PhysRevD.56.2439

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.

Subject

Anisotropia, Teoria de camps (Física)

Subject (English)

Anisotropy, Field theory (Physics)

Citation

Collections

Articles publicats en revistes (Física de la Matèria Condensada)

Citation

GARRIGA TORRES, Jaume and MUKHANOV, V. F. Classical anisotropies in models of open inflation. Physical Review D. 1997. Vol. 56, num. 4, pags. 2439. ISSN 0556-2821. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/12338

Export metadata

JSON - METS

Share record