51. On the perturbative corrections around D-string instantons
- Author
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Kumar S. Narain, Edi Gava, Jose F. Morales, and Amine B. Hammou
- Subjects
Physics ,High Energy Physics - Theory ,Nuclear and High Energy Physics ,Instanton ,hep-th ,High Energy Physics::Phenomenology ,FOS: Physical sciences ,Gauge (firearms) ,Term (logic) ,String (physics) ,Action (physics) ,Theoretical physics ,High Energy Physics::Theory ,High Energy Physics - Theory (hep-th) ,Orbifold ,String duality - Abstract
We study ${\cal F}^4$-threshold corrections in an eight dimensional S-dual pair of string theories, as a prototype of dual string vacua with sixteen supercharges. We show that the orbifold CFT description of D-string instantons gives rise to a perturbative expansion similar to the one appearing on the fundamental string side. By an explicit calculation, using the Nambu-Goto action in the static gauge, we show that the first subleading term agrees precisely on the two sides. We then give a general argument to show that the agreement extends to all orders., Comment: 12 pages
- Published
- 2015