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arXiv · 2409.05704

Auxiliary Field Deformations of (Semi-)Symmetric Space Sigma Models

Daniele Bielli·Christian Ferko·Liam Smith·Gabriele Tartaglino-Mazzucchelli
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Abstract

We generalize the auxiliary field deformations of the principal chiral model (PCM) introduced in arXiv:2405.05899 and arXiv:2407.16338 to sigma models whose target manifolds are symmetric or semi-symmetric spaces, including a Wess-Zumino term in the latter case. This gives rise to a new infinite family of classically integrable $\mathbb{Z}_2$ and $\mathbb{Z}_4$ coset models of the form which are of interest in applications of integrability to worldsheet string theory and holography. We demonstrate that every theory in this infinite class admits a zero-curvature representation for its equations of motion by exhibiting a Lax connection.

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Daniele Bielli, Christian Ferko, Liam Smith, Gabriele Tartaglino-Mazzucchelli. 2024-09-09. Auxiliary Field Deformations of (Semi-)Symmetric Space Sigma Models. https://arxiv.org/abs/2409.05704

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