Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-09-24
Phys.Rev.D78:084007,2008
Astronomy and Astrophysics
Astrophysics
18 pages, no figure. accepted in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.78.084007
We investigate multi-dimensional universe with nonlinear scalar curvature terms to evaluate the probability of creation of primordial black holes. For this we obtain Euclidean instanton solution in two different topologies: (a) $S^{D-1}$ - topology which does not accommodate primordial black holes and (b) $S^1\times S^{D-2}$-topology which accommodates a pair of black holes. The probability for quantum creation of an inflationary universe with a pair of black holes has been evaluated assuming a gravitational action which is described by a polynomial function of scalar curvature with or without a cosmological constant ($\Lambda $) using the framework of semiclassical approximation of Hartle-Hawking boundary conditions. We discuss here a class of new gravitational instantons solution in the $R^4$-theory which are relevant for cosmological model building.
Ghose Shohini
Paul Bikash Chandra
Saha Avishek
No associations
LandOfFree
Probability for Primordial Black Holes in Multidimensional Universe with Nonlinear Scalar Curvature Terms does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probability for Primordial Black Holes in Multidimensional Universe with Nonlinear Scalar Curvature Terms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probability for Primordial Black Holes in Multidimensional Universe with Nonlinear Scalar Curvature Terms will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-110867