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Accelerating Cosmologies in the Einstein-Gauss-Bonnet Theory with Dilaton | | Kazuharu Bamba
; Zong-Kuan Guo
; Nobuyoshi Ohta
; | | Date: |
2 Aug 2007 | | Abstract: | We study cosmological solutions in the low-energy effective heterotic string
theory, which is the Einstein gravity with Gauss-Bonnet term and the dilaton.
We show that the field equations are cast into an autonomous system for flat
internal and external spaces, and derive all the fixed points in the system. We
also examine the time evolution of the solutions and whether the solutions can
give (transient) accelerated expansion of our four-dimensional space in the
Einstein frame. | | Source: | arXiv, 0707.4334 | | Services: | Forum | Review | PDF | Favorites | |
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