The Nonlinear Multiplet Revisited

TL;DR

This paper revisits the nonlinear multiplet by reformulating it as a gauge multiplet, revealing that its duality introduces a new sector, thereby deepening understanding of its dynamics and relation to sigma models.

Contribution

It presents a novel reformulation of the nonlinear multiplet as a gauge multiplet and analyzes the implications of its duality, uncovering a new sector in the theory.

Findings

Reformulation as gauge multiplet clarifies the nonlinear multiplet's structure.

Duality introduces a new sector into the model.

Enhanced understanding of the multiplet's dynamics and relation to sigma models.

Abstract

Using a reformulation of the nonlinear multiplet as a gauge multiplet, we discuss its dynamics. We show that the nonlinear ``duality'' that appears to relate the model to a conventional $\sigma$-model introduces a new sector into the theory.