A Remark on Dilaton Stabilization

TL;DR

This paper discusses a mechanism for stabilizing the dilaton in string-inspired models through quantum effects and superpotential interactions, highlighting challenges at strong coupling.

Contribution

It introduces a toy model demonstrating dilaton stabilization via quantum modifications and superpotential effects, emphasizing the tendency towards strong coupling.

Findings

Dilaton stabilization can occur in models with a single gauge group and matter.

Stabilization often requires strong coupling unless parameters are finely tuned.

The proposed mechanism relies on quantum modifications of the moduli space.

Abstract

Dilaton stabilization may occur in a theory based on a single asymptotically free gauge group with matter due to an interplay between quantum modification of the moduli space and tree-level superpotential. We present a toy model where such a mechanism is realized. Dilaton stabilization in this mechanism tends to occur at strong coupling values unless some unnatural adjustment of parameters is involved.