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|Title:||String Inspired Brane World Cosmology|
Sopuerta, Carlos F.
Forats negres (Astronomia)
Black holes (Astronomy)
|Publisher:||American Physical Society|
|Abstract:||We consider brane world scenarios including the leading correction to the Einstein-Hilbert action suggested by superstring theory, the Gauss-Bonnet term. We obtain and study the complete set of equations governing the cosmological dynamics. We find they have the same form as those in Randall-Sundrum scenarios but with time-varying four-dimensional gravitational and cosmological constants. By studying the bulk geometry we show that this variation is produced by bulk curvature terms parametrized by the mass of a black hole. Finally, we show there is a coupling between these curvature terms and matter that can be relevant for early universe cosmology.|
|Note:||Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.88.231101|
|It is part of:||Physical Review Letters, 2002, vol. 88, num. 23, p. 231101|
|Appears in Collections:||Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))|
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