Work

String instantons, fluxes and moduli stabilization

Year: 2007

Type: article

Abstract: We analyze a class of dual pairs of heterotic and type I models based on freely-acting Z2×Z2 orbifolds in four dimensions. Using the adiabatic argument, it is possible to calculate non-perturbative contributions to the gauge coupling threshold corrections on the type I side by exploiting perturbative calculations on the heterotic side, without the drawbacks due to twisted moduli. The instanton effects can then be combined with closed-string fluxes to stabilize most of the moduli fields of the internal manifold, and also the dilaton, in a racetrack realization of the type I model.

Source: Nuclear Physics B

DOI: 10.1016/j.nuclphysb.2007.11.026

Authors: P.G. Cámara, E. Dudas, T. Maillard, G. Pradisi

Institutions: Centre de Physique Théorique, Centre de Physique Théorique, Laboratoire de Physique Théorique d’Orsay, University of Rome Tor Vergata, Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: