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자연과학대학
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Cosmological constant behavior in DBI theory
Title
Cosmological constant behavior in DBI theory
Authors
Ahn C.
;
Kim C.
;
Linder E.V.
Ewha Authors
안창림
;
김찬주
;
Eric V. Linder
SCOPUS Author ID
안창림
; 김찬주
Issue Date
2010
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
Citation
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics vol. 684, no. 41369, pp. 181 - 184
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
Cosmological constant behavior can be realized as solutions of the Dirac-Born-Infeld (DBI) action within Type IIB string theory and the AdS/CFT correspondence. We derive a family of attractor solutions to the cosmological constant that arise purely from the "relativistic" nature of the DBI action without an explicit false vacuum energy. We also find attractor solutions with values of the equation of state near but with w ≠ - 1; the forms for the potential arising from flux interactions are renormalizable and natural, and the D3-brane tension can be given by the standard throat form. We discuss present and future observational constraints on the theory. © 2010 Elsevier B.V. All rights reserved.
DOI
10.1016/j.physletb.2009.12.069
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