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oai:recercat.cat:2445/123782025-12-04T20:42:58Zcom_2072_1057col_2072_478822col_2072_478917

urn:hdl:2445/12378 Coincident brane nucleation and the neutralization of Lambda Garriga Torres, Jaume Megevand, Ariel Relativitat general (Física) Cosmologia Teoria de camps (Física) General relativity (Physics) Field theory (Physics) Cosmology "static" instanton, representing pair creation of critical bubbles¿a process somewhat analogous to thermal activation in flat space. In that case, the branes may stick together due to thermal symmetry restoration, and the pair creation rate depends exponentially on the ambient de Sitter temperature, switching off sharply as the temperature approaches zero. Such a static instanton may be well suited for the ¿saltatory¿ relaxation scenario proposed by Feng et al. 2010-05-06T09:31:30Z 2010-05-06T09:31:30Z 2004 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.69.083510 Physical Review D, 2004, vol. 69, núm. 8, p. 083510-1-083510-22 http://dx.doi.org/10.1103/PhysRevD.69.083510 (c) The American Physical Society, 2004 info:eu-repo/semantics/openAccess The American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)