de Sitter Brane Gravity: from Close-Up to Panorama

Details de Sitter Brane Gravity: from Close-Up to Panorama de Sitter Brane Gravity: from Close-Up to Panorama

2000-12-24

arxiv.org/abs/hep-th/0012231v2

Phys.Lett. B503 (2001) 384-393

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, latex, 1 figure; added appendix of useful Legendre formulas, minor modifications, more references, to appear in Phys

Scientific paper

10.1016/S0370-2693(01)00233-7

We find explicitly the induced graviton propagator on de Sitter branes embedded in various five-dimensional spacetimes; de Sitter branes in AdS and Minkowski space are particular cases. By studying the structure of the momentum-space propagator, we are able to extract interesting physics, much of which is qualitatively different from that of flat branes. We find that 1) there can be a set of graviton-like particles which mediate brane gravity at different scales; 2) localized gravity can exist even on de Sitter branes in Minkowski space; 3) Kaluza-Klein modes also contribute to conventional 4-D gravity for de Sitter branes in AdS; and 4) Newton's constant can vary considerably with scale. We comment on the implications for the effective cosmological constant.

Affiliated with

Also associated with

No associations

Rating

de Sitter Brane Gravity: from Close-Up to Panorama 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 de Sitter Brane Gravity: from Close-Up to Panorama, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and de Sitter Brane Gravity: from Close-Up to Panorama will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-678780