Calculable e^{-1/λ} Effects

Details Calculable e^{-1/λ} Effects Calculable e^{-1/λ} Effects

1997-07-25

arxiv.org/abs/hep-th/9707222v2

Nucl.Phys. B512 (1998) 61-78

Physics

High Energy Physics

High Energy Physics - Theory

LaTex, 24 pages; typos corrected, 4 references added, D-brane interpretation improved at end of Section 5. Final version

Scientific paper

10.1016/S0550-3213(97)00684-6

We identify and evaluate a class of physical amplitudes in four-dimensional N=4 superstring theory, which receive, in the weak coupling limit, contributions of order e^{-1/\lambda}, where \lambda is the type II superstring coupling constant. They correspond to four-derivative \Ftilde_1 interaction terms involving the universal type II dilaton supermultiplet. The exact result, obtained by means of a one-loop computation in the dual heterotic theory compactified on T^6, is compared with the perturbation theory on the type II side, and the e^{-1/\lambda} contributions are associated to non-perturbative effects of Euclidean solitons (D-branes) wrapped on K3 x T^2. The ten-dimensional decompactification limit on the type IIB side validates the recent conjecture for the D-instanton-induced R^4 couplings.

Affiliated with

Also associated with

No associations

Rating

Calculable e^{-1/λ} Effects 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 Calculable e^{-1/λ} Effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculable e^{-1/λ} Effects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-505353