Membrane Instantons and de Sitter Vacua

Details Membrane Instantons and de Sitter Vacua Membrane Instantons and de Sitter Vacua

2005-06-13

arxiv.org/abs/hep-th/0506097v3

JHEP 0509 (2005) 065

Physics

High Energy Physics

High Energy Physics - Theory

v3: minor clarifications, JHEP version, 38 pages

Scientific paper

10.1088/1126-6708/2005/09/065

We investigate membrane instanton effects in type IIA strings compactified on rigid Calabi-Yau manifolds. These effects contribute to the low-energy effective action of the universal hypermultiplet. In the absence of additional fivebrane instantons, the quaternionic geometry of this hypermultiplet is determined by solutions of the three-dimensional Toda equation. We construct solutions describing membrane instantons, and find perfect agreement with the string theory prediction. In the context of flux compactifications we discuss how membrane instantons contribute to the scalar potential and the stabilization of moduli. Finally, we demonstrate the existence of meta-stable de Sitter vacua.

Affiliated with

Also associated with

No associations

Rating

Membrane Instantons and de Sitter Vacua 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 Membrane Instantons and de Sitter Vacua, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane Instantons and de Sitter Vacua will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-649542