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.

Camara, P., Dudas, E., Maillard, T., Pradisi, G. (2008). String Instanton, Fluxes and Moduli Stabilization. NUCLEAR PHYSICS. B, 795(1-2), 453-489 [http://dx.doi.org/10.1016/j.nuclphysb.2007.11.026].

String Instanton, Fluxes and Moduli Stabilization

PRADISI, GIANFRANCO
2008-01-01

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.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI
English
http://www.sciencedirect.com/science/article/pii/S0550321307009169
Camara, P., Dudas, E., Maillard, T., Pradisi, G. (2008). String Instanton, Fluxes and Moduli Stabilization. NUCLEAR PHYSICS. B, 795(1-2), 453-489 [http://dx.doi.org/10.1016/j.nuclphysb.2007.11.026].
Camara, P; Dudas, E; Maillard, T; Pradisi, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/56092
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