Chern-Simons S-Brane Solutions in M-theory and Accelerating Cosmologies

Details Chern-Simons S-Brane Solutions in M-theory and Accelerating Cosmologies Chern-Simons S-Brane Solutions in M-theory and Accelerating Cosmologies

2009-03-06

arxiv.org/abs/0903.1186v4

JHEP 0904:109,2009

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, v3: a new static solution and references added, v4: references added, to appear in JHEP

Scientific paper

10.1088/1126-6708/2009/04/109

We construct an intersecting S-brane solution of 11-dimensional supergravity for which the contribution of the Chern-Simons term to the field equations is non-zero. After studying some of its properties, we consider three different compactifications (each with 3 separate subcases) of this system to 4-dimensions. Two of these give accelerating cosmologies, however their expansion factors are of order unity. We also find two static versions of this configuration and its dimensional reduction to type IIA theory.

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