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Integrable Spin Chains from large-$N$ QCD at strong coupling

High Energy Physics - Theory 2024-05-09 v2 High Energy Physics - Lattice

Abstract

We study a spin chain for a confining string that arises at first order in degenerate perturbation from the strong-coupling expansion of the Kogut-Susskind Hamiltonian on a square lattice in the leading large NN expansion. We show some subsectors are integrable and that with a relaxed constraint related to zigzag symmetry, the full spin chain is integrable in arbitrary dimensions.

Keywords

Cite

@article{arxiv.2308.11716,
  title  = {Integrable Spin Chains from large-$N$ QCD at strong coupling},
  author = {David Berenstein and Hiroki Kawai},
  journal= {arXiv preprint arXiv:2308.11716},
  year   = {2024}
}

Comments

5 pages, 5 figures. v2: updated references, minor edits

R2 v1 2026-06-28T12:01:53.254Z