Domain Walls and the Creation of Strings

TL;DR

This paper explores string creation phenomena related to domain walls in various dimensions, analyzing supergravity solutions and dualities, and extending known systems to nine-dimensional theories with gauged supergravities.

Contribution

It introduces new supergravity solutions involving particles, strings, and domain walls in nine and ten dimensions, generalizing existing models with SL(2,R) symmetry.

Findings

String creation occurs via domain walls and dualities.

New supergravity solutions for 9D gauged supergravities.

Extension of D0-F1-D8 system to 9D with SL(2,R) symmetry.

Abstract

The phenomenon of creation of strings, occurring when particles pass through a domain wall and related to the Hanany-Witten effect via dualities, is discussed in ten and nine dimensions. We consider both the particle actions in massive backgrounds as well as the 1/4-supersymmetric particle-string-domain wall supergravity solutions and discuss their physical interpretation. In 10D we discuss the D0-F1-D8 system in massive IIA theory while in 9D the SL(2,R)-generalisation is constructed. It consists of (p,q)-particles, (r,s)-strings and the double domain wall solution of the three different 9D gauged supergravities where a subgroup of SL(2,R) is gauged.