String loop corrections to the universal hypermultiplet
Antoniadis I. (
Theory Division, European Organization for Nuclear Research, CERN, CH-1211 Genève 23, Switzerland (Suisse))
Minasian R. (
Centre de Physique Théorique (CPhT), CNRS, Ecole Polytechnique, F-91128 Palaiseau, France)
Theisen S. (
Max Planck Institut für Gravitationsphysik Albert Einstein Institut, Am Mühlenberg 1, D-14476 Golm, GERMANY)
Vanhove P. (
CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Abstract:
We study loop corrections to the universal dilaton supermultiplet for type
IIA strings compactified on Calabi-Yau threefolds. We show that the
corresponding quaternionic kinetic terms receive non-trivial one-loop
contributions proportional to the Euler number of the Calabi-Yau manifold,
while the higher-loop corrections can be absorbed by field redefinitions. The
corrected metric is no longer Kahler. Our analysis implies in particular that
the Calabi-Yau volume is renormalized by loop effects which are present even in
higher orders, while there are also one-loop corrections to the Bianchi
identities for the NS and RR field strengths.
Année de publication : 2003
Revue : Class. Quantum Grav.
20 5079-5102 (2003)
DOI :
10.1088/0264-9381/20/23/009Preprint :
arXiv:hep-th/0307268 Lien :
http://stacks.iop.org/0264-9381/20/5079 PACS : 04.65.+e
Numéro Exterieur : AEI-2003-052 ; CPHT-RR030.0603 ; CERN-TH/2003-139
Langue : Anglais
Fichier(s) à télécharger : publi.pdf