Frame-like Actions for Massless Mixed-Symmetry Fields in Minkowski space

TL;DR

This paper develops a unified, simple frame-like action for massless mixed-symmetry bosonic fields in Minkowski space, utilizing tensor-valued differential forms and unfolded equations.

Contribution

It introduces a novel, streamlined formulation of actions for mixed-symmetry fields using tensor differential forms and unfolded equations, applicable to arbitrary spins.

Findings

Constructed a universal action for mixed-symmetry fields.

Simplified the form of the action to two terms per field.

Utilized unfolded equations for a consistent formulation.

Abstract

A frame-like action for arbitrary mixed-symmetry bosonic massless fields in Minkowski space is constructed. The action is given in a simple form and consists of two terms for a field of any spin. The fields and gauge parameters are certain tensor-valued differential forms. The formulation is based on the unfolded form of equations for mixed-symmetry fields.