Quantum fluctuations on a thick de Sitter brane

Details Quantum fluctuations on a thick de Sitter brane Quantum fluctuations on a thick de Sitter brane

2005-08-13

arxiv.org/abs/hep-th/0508093v3

Nucl.Phys.B737:121-152,2006

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, typos corrected

Scientific paper

10.1016/j.nuclphysb.2005.12.018

We investigate quantum fluctuations on a de Sitter (dS) brane, which has its own thickness, in order to examine whether or not the finite thickness of the brane can act as a natural cut-off for the Kaluza-Klein (KK) spectrum. We calculate the amplitude of the KK modes and the bound state by using the zeta function method after a dimensional reduction.We show that the KK amplitude is finite for a given brane thickness and in the thin wall limit the standard surface divergent behavior is recovered. The strength of the divergence in the thin wall limit depends on the number of dimensions, e.g., logarithmic on a two dimensional brane and quadratic on a four dimensional brane. We also find that the amplitude of the bound state mode and KK modes depends on the choice of renormalization scale; and for fixed renormalization scales the bound state mode is insensitive to the brane thickness both for two and four-dimensional dS branes.

Affiliated with

Also associated with

No associations

Rating

Quantum fluctuations on a thick de Sitter brane 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 Quantum fluctuations on a thick de Sitter brane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum fluctuations on a thick de Sitter brane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-495438