DBI Galileon and late time acceleration of the universe

We consider 1 + 3 dimensional maximally symmetric Minkowski brane embedded in a 1 + 4 dimensional maximally symmetric Minkowski background. The resulting 1 + 3 dimensional effective field theory is of DBI (Dirac-Born-Infeld) Galileon type. We use this model to study the late time acceleration of the...

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Bibliographic Details
Published inJournal of cosmology and astroparticle physics Vol. 2012; no. 12; pp. 1 - 16
Main Author Sen, Anjan A
Format Journal Article
LanguageEnglish
Published United States 01.12.2012
Subjects
ACCELERATION
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BORN-INFELD THEORY
BRANES
COSMOLOGICAL CONSTANT
COSMOLOGY
Deviation
FIELD THEORIES
Field theory
Mathematical models
MINKOWSKI SPACE
NONLUMINOUS MATTER
SYMMETRY
Three dimensional
THREE-DIMENSIONAL CALCULATIONS
UNIVERSE
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Summary:We consider 1 + 3 dimensional maximally symmetric Minkowski brane embedded in a 1 + 4 dimensional maximally symmetric Minkowski background. The resulting 1 + 3 dimensional effective field theory is of DBI (Dirac-Born-Infeld) Galileon type. We use this model to study the late time acceleration of the universe. We study the deviation of the model from the concordance ACDM behaviour. Finally we put constraints on the model parameters using various observational data.
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ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2012/12/019