%0 Conference Proceedings
%T Instanton effects in string theory, Twistors and Integrability
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%A Alexandrov, Sergey
%F Invité
%< avec comité de lecture
%Z LPTA:10-085
%B From Sigma Models to Four-dimensional QFT
%C Hamburg, Germany
%8 2010-11-29
%D 2010
%Z Physics [physics]/High Energy Physics - Theory [hep-th]Conference papers
%X The low-energy effective action of compactified Type II string theory is determined by the geometry of its moduli space which receives instanton corrections. I'll present a non-perturbative description of this moduli space, which crucially relies on the twistor approach to quaternionic geometries. Using this approach, I'll show how one can incorporate contributions from all D-brane instantons and give some partial results on instanton effects generated by NS5-brane. I'll argue that, ignoring the latter contributions, the moduli space corresponds to an integrable system.
%G English
%L hal-00543669
%U https://hal.science/hal-00543669
%~ IN2P3
%~ LPTA
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-MONTPELLIER
%~ UM1-UM2