D-branes and geometrical kappa-symmetry

TL;DR

This paper introduces new superspace formulations for D-branes that eliminate the need for worldvolume gauge fields and demonstrates their kappa-symmetry, advancing the theoretical understanding of D-brane dynamics.

Contribution

It constructs D-brane actions using extended superspaces linked to topological charge algebras, showing these actions are kappa-symmetric without gauge fields.

Findings

D-brane actions without worldvolume gauge fields

Kappa-symmetry demonstrated for new superspace actions

Use of topological charge algebras in D-brane theory

Abstract

New extended superspaces associated with topological charge algebras of the D-brane are used to construct D-brane actions without worldvolume gauge fields. The actions are shown to be kappa-symmetric under an appropriately chosen right group action.