Strings at the bottom of the deformed conifold

TL;DR

This paper explores solutions for macroscopic F and D strings in conifold geometries, highlighting how internal modes influence string stability and potential for static loops, with implications for brane inflation models.

Contribution

It introduces solutions for strings with internal windings and analyzes how Goldstone modes affect their stability and dynamics in conifold backgrounds.

Findings

Goldstone modes induce currents preventing string collapse.

Existence of static 4D string loops due to internal windings.

Relevance to brane inflation scenarios.

Abstract

We present solutions of the equations of motion of macroscopic F and D strings extending along the non compact 4D sections of the conifold geometry and winding around the internal directions. The effect of the Goldstone modes associated with the position of the strings on the internal manifold can be seen as a current on the string that prevents it from collapsing and allows the possibility of static 4D loops. Its relevance in recent models of brane inflation is discussed.