M-Theory and Topological Strings--I

Details M-Theory and Topological Strings--I M-Theory and Topological Strings--I

1998-09-25

arxiv.org/abs/hep-th/9809187v1

Physics

High Energy Physics

High Energy Physics - Theory

14 pages

Scientific paper

The $R^2 F^{2g-2}$ terms of Type IIA strings on Calabi-Yau 3-folds, which are given by the corresponding topological string amplitudes (a worldsheet instanton sum for all genera), are shown to have a simple M-theory interpretation. In particular, a Schwinger one-loop computation in M-theory with wrapped M2 branes and Kaluza-Klein modes going around the loop reproduces the all genus string contributions from constant maps and worldsheet instanton corrections. In the simplest case of an isolated M2 brane with the topology of the sphere, we obtain the contributions of small worldsheet instantons (sphere ``bubblings'') which extends the results known or conjectured for low genera. Surprisingly, the 't Hooft expansion of large $N$ Chern-Simons theory on $S^3$ can also be used in a novel way to compute these gravitational terms at least in special cases.

Affiliated with

Also associated with

No associations

Rating

M-Theory and Topological Strings--I 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 M-Theory and Topological Strings--I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and M-Theory and Topological Strings--I will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-670799