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arXiv · 2208.01930

Supersymmetric instantonic D1-branes in AdS$_5\times$S$^5$ background

Jaemo Park·Hyeonjoon Shin
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Abstract

According to the covariant open superstring description of 1/2-BPS D-branes in the AdS$_5\times$S$^5$ 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$^5$. 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$^5$ is 1/2-BPS. After evaluating the 1/2-BPS D1-instanton action, we discuss the relation of D1-instanton with the $(p, q)$ string instanton. We also discuss the possible 1/2-BPS and 1/4-BPS multiple D1-instanton configurations.

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Jaemo Park, Hyeonjoon Shin. 2022-08-03. Supersymmetric instantonic D1-branes in AdS$_5\times$S$^5$ background. https://doi.org/10.1007/jhep11(2022)012

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