Generalized Action Principle and Superfield Equations of Motion for d=10 D-p-branes

TL;DR

This paper reformulates the action for D=10 super-p-branes using Lorentz harmonic variables, providing a geometrical approach that clarifies kappa-symmetry and derives superfield equations of motion, with detailed analysis for the super-3-brane.

Contribution

It introduces a Lorentz-harmonic formulation of D=10 super-p-branes that makes kappa-symmetry irreducible and derives superfield equations of motion through a generalized action principle.

Findings

Lorentz-harmonic formulation possesses irreducible kappa-symmetry

Superfield equations of motion are derived from a generalized action principle

Detailed analysis of the super-3-brane case

Abstract

The action for the D=10 type II Dirichlet super-p-branes, which has been obtained recently, is reconstructed in a more geometrical form involving Lorentz harmonic variables. This new (Lorentz-harmonic) formulation possesses kappa-symmetry in an irreducible form and is used as a basis for applying a generalized action principle that provides the superfield equations of motion and clarifies the geometrical nature of the kappa-symmetry of these models. The case of a Dirichlet super-3-brane is considered in detail.