Aspects of $\kappa$--symmetry

TL;DR

This paper reviews the role of $$-symmetry, a fermionic gauge symmetry crucial in superstring and supermembrane theories, and explores its connection to twistor-like formulations.

Contribution

It provides a comprehensive review of $$-symmetry and its relation to twistor formulations in extended objects.

Findings

Clarifies the importance of $$-symmetry in superstring theories.

Discusses the connection between $$-symmetric models and twistor approaches.

Summarizes key aspects of fermionic gauge symmetries in higher-dimensional theories.

Abstract

We review various aspects of a fermionic gauge symmetry, known as the $\kappa$--symmetry, which plays an important role in formulations of superstrings, supermembranes and higher dimensional extended objects. We also review some aspects of the connection between $\kappa$--symmetric theories and their twistor-like formulations.