Stationary vs. singular points in an accelerating FRW cosmology derived from six-dimensional Einstein–Gauss–Bonnet gravity

Six-dimensional Einstein–Gauss–Bonnet gravity (with a linear Gauss–Bonnet term) is investigated. This theory is inspired by basic features of results coming from string and M-theory. Dynamical compactification is carried out and it is seen that a four-dimensional accelerating FRW universe is recover...

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Bibliographic Details
Published inPhysics letters. B Vol. 644; no. 1; pp. 1 - 6
Main Authors Elizalde, E., Makarenko, A.N., Obukhov, V.V., Osetrin, K.E., Filippov, A.E.
Format Journal Article
LanguageEnglish
Russian
Published Amsterdam Elsevier B.V 01.01.2007
Elsevier Science
Subjects
97.60.Bw
98.70.Dk
98.80.-k
98.80.Es
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Summary:Six-dimensional Einstein–Gauss–Bonnet gravity (with a linear Gauss–Bonnet term) is investigated. This theory is inspired by basic features of results coming from string and M-theory. Dynamical compactification is carried out and it is seen that a four-dimensional accelerating FRW universe is recovered, when the two-dimensional internal space radius shrinks. A non-perturbative structure of the corresponding theory is identified which has either three or one stable fixed points, depending on the Gauss–Bonnet coupling being positive or negative. A much richer structure than in the case of the perturbative regime of the dynamical compactification recently studied by Andrew, Bolen, and Middleton is exhibited.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2006.11.031