Locally wrapped D-branes

TL;DR

This paper introduces locally wrapped D-branes in string theory, showing they resemble skyrmions and suggesting curvature corrections could smooth out their singularities, providing new insights into topological brane excitations.

Contribution

It presents the first examples of locally wrapped D-branes and discusses how curvature corrections may delocalize their wrapping, avoiding singularities.

Findings

Locally wrapped D-branes mimic skyrmions as topological excitations.

Curvature corrections could delocalize brane wrapping.

Potential non-singular behavior due to string-scale effects.

Abstract

We find examples in string theory of locally wrapped D-branes. These excitations mimic skyrmions in that they correspond to topological excitations of the scalar fields parametrizing the brane motion in the space transverse to its world-volume. While these brane excitations appear to be point-like, evidence is provided that curvature corrections to the probe action might allow for a delocalization of the wrapping on a scale of the order of the string length, therefore rendering the phenomena non-singular.