Adding a Brane to the Brane-Anti-Brane Action in BSFT
Nicholas T. Jones, Louis Leblond, and S.-H. Henry Tye
TL;DR
This paper extends the boundary superstring field theory (BSFT) effective action for a D-brane-anti-D-brane system by adding an extra D-brane, resulting in a covariantized action that admits solitonic solutions.
Contribution
It introduces a generalized covariant effective action for a system of two D-branes and one anti-D-brane within BSFT, including solitonic solutions.
Findings
The effective action admits vortex solutions of codimension 2.
The action is covariant and includes an additional D-brane.
Approximations are discussed for obtaining a closed-form action.
Abstract
We attempt to generalize the effective action for the D-brane-anti-D-brane system obtained from boundary superstring field theory (BSFT) by adding an extra D-brane to it to obtain a covariantized action for 2 D-branes and 1 anti-D-brane. We discuss the approximations made to obtain the effective action in closed form. Among other properties, this effective action admits solitonic solutions of codimension 2 (vortices) when one of the D-brane is far separated from the brane-anti-brane pair.
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