D-Brane Actions with Local Kappa Symmetry

TL;DR

This paper develops world-volume actions for Dirichlet p-branes in flat 10-dimensional space, incorporating superspace coordinates, gauge fields, and local kappa symmetry, to describe their dynamics with consistent symmetries.

Contribution

It formulates explicit actions for D-branes with local kappa symmetry, clarifying their symmetry structure and field content in flat 10d backgrounds.

Findings

Actions exhibit local kappa symmetry and supersymmetry.

Global symmetries correspond to N=2A or N=2B super-Poincare groups.

Provides a foundation for analyzing D-brane dynamics in string theory.

Abstract

We formulate world-volume actions that describe the dynamics of Dirichlet p-branes in a flat 10d background. The fields in these theories consist of the 10d superspace coordinates and an abelian world-volume gauge field. The global symmetries are given by the N=2A or N=2B super-Poincare group, according to whether p is even or odd. The local symmetries in the (p + 1)-dimensional world volume are general coordinate invariance and a fermionic kappa symmetry.