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Journal of High Energy Physics 09 (2009) 108
Quantum mirror symmetry and twistors
Sergey Alexandrov1, Frank Saueressig
(25/09/2009)

Using the twistor approach to hypermultiplet moduli spaces, we derive theworldsheet, D(-1), and D1-instanton contributions to the generalized mirrormap, relating Type IIA and Type IIB string theory compactified on genericmirror Calabi-Yau threefolds. For this purpose, we provide a novel descriptionof the twistor space underlying the Type IIB hypermultiplet moduli space wherethe SL(2,Z)-action is found to be free from quantum corrections. The extent towhich instanton effects may resolve the perturbative singularities of themoduli space metric is discussed.
1 :  LPTA - Laboratoire de Physique Théorique et Astroparticules
Physique/Physique des Hautes Energies - Théorie
String Duality – Extended Supersymmetry – Supersymmetric Effective Theories – Differential and Algebraic Geometry
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/0906.3743