TBA for non-perturbative moduli spaces

Open Access

DOI: 10.1007/JHEP06(2010)066

Cite this article as:
Alexandrov, S. & Roche, P. J. High Energ. Phys. (2010) 2010: 66. doi:10.1007/JHEP06(2010)066


Recently, an exact description of instanton corrections to the moduli spaces of 4d N = 2 supersymmetric gauge theories compactified on a circle and Calabi-Yau compactifications of Type II superstring theories was found. The equations determining the instanton contributions turn out to have the form of Thermodynamic Bethe Ansatz. We explore further this relation and, in particular, we identify the contact potential of quaternionic string moduli space with the free energy of the integrable system and the Kähler potential of the gauge theory moduli space with the Yang-Yang functional. We also show that the corresponding S-matrix satisfies all usual constraints of 2d integrable models, including crossing and bootstrap, and derive the associated Y-system. Surprisingly, in the simplest case the Y-system is described by the MacMahon function relevant for crystal melting and topological strings.


Supersymmetric gauge theory Superstrings and Heterotic Strings Bethe Ansatz 
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© The Author(s) 2010

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Authors and Affiliations

  1. 1.Laboratoire de Physique Théorique & Astroparticules, CNRS UMR 5207Université Montpellier IIMontpellier Cedex 05France

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