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arXiv · hep-th/9808185

String Junction from Worldsheet Gauge Theory

Koji Hashimoto
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Abstract

We study the three-pronged strings (three string junctions) from the point of view of D-string worldsheet gauge theory. We justify interpreting kink solutions in the 2-dimensional gauge theory as pronged strings by examining BPS energy bounds obtained from this theory. When the ends of the pronged string are on D3-branes, the configuration preserves 1/4 supersymmetry with BPS conditions including the Nahm equation. Using solutions of the Nahm equation explicitly, we treat string junction configuration ending on the D3-branes from the viewpoint of the D-string. In particular, when two separated pronged strings end on the same D3-branes, they interact with each other through the D3-branes and the resultant trajectories of three-pronged strings are found to be curved non-trivially.

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Koji Hashimoto. 1999-09-06. String Junction from Worldsheet Gauge Theory. https://doi.org/10.1143/ptp.101.1353

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