BPS Nature of 3-String Junctions
High Energy Physics - Theory
2009-10-30 v1
Abstract
We study BPS-saturated classical solutions for the world-sheet theory of a D-string in the presence of a point charge. These solutions are interpreted as describing planar 3-string junctions, which arise because the original D-string is deformed by the presence of the inserted charge. We compute the angles of the junctions and show that the vector sum of string tensions is zero, confirming a conjecture of Schwarz that such configurations are BPS states.
Keywords
Cite
@article{arxiv.hep-th/9711094,
title = {BPS Nature of 3-String Junctions},
author = {Keshav Dasgupta and Sunil Mukhi},
journal= {arXiv preprint arXiv:hep-th/9711094},
year = {2009}
}
Comments
7 pages, harvmac (b), 3 figures