Gauge thresholds in the presence of oblique magnetic fluxes

TL;DR

This paper analyzes gauge threshold corrections and consistency conditions in type I string models with oblique magnetic fluxes, exploring dualities, moduli stabilization, and implications for unification.

Contribution

It provides a detailed computation of one-loop partition functions and threshold corrections in models with oblique magnetic fluxes, addressing quantum consistency and phenomenological implications.

Findings

Confirmed tadpole cancellation conditions in magnetic flux models

Computed one-loop gauge threshold corrections explicitly

Discussed implications for coupling unification and moduli stabilization

Abstract

We compute the one-loop partition function and analyze the conditions for tadpole cancellation in type I theories compactified on tori in the presence of internal oblique magnetic fields. We check open - closed string channel duality and discuss the effect of T-duality. We address the issue of the quantum consistency of the toroidal model with stabilized moduli recently proposed by Antoniadis and Maillard (AM). We then pass to describe the computation of one-loop threshold corrections to the gauge couplings in models of this kind. Finally we briefly comment on coupling unification and dilaton stabilization in phenomenologically more viable models