Supersymmetric instantonic D1-branes in AdS$_5\times$S$^5$ background
Abstract
According to the covariant open superstring description of 1/2-BPS D-branes in the AdSS background, there are two kinds of purely instantonic D-branes. One is the well known D(-1)-brane or D-instanton, and another is the D1-brane spanning a two dimensional subspace inside S. We identify the actual 1/2-BPS instantonic D1-brane configurations and their supersymmetry structures. From the results, it is concluded that any spherical D1-instanton with the radius equal to that of S is 1/2-BPS. After evaluating the 1/2-BPS D1-instanton action, we discuss the relation of D1-instanton with the string instanton. We also discuss the possible 1/2-BPS and 1/4-BPS multiple D1-instanton configurations.
Cite
@article{arxiv.2208.01930,
title = {Supersymmetric instantonic D1-branes in AdS$_5\times$S$^5$ background},
author = {Jaemo Park and Hyeonjoon Shin},
journal= {arXiv preprint arXiv:2208.01930},
year = {2022}
}
Comments
17 pages; v2: 20 pages, references added, clarification of some points, relation with (p,q) string added, version to appear in JHEP