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The Spectrum of Permutation Orbifolds

High Energy Physics - Theory 2017-09-28 v2 Mathematical Physics Combinatorics math.MP

Abstract

We study the spectrum of permutation orbifolds of 2d CFTs. We find examples where the light spectrum grows faster than Hagedorn, which is different from known cases such as symmetric orbifolds. We also describe how to compute their partition functions using a generalization of Hecke operators.

Keywords

Cite

@article{arxiv.1708.01258,
  title  = {The Spectrum of Permutation Orbifolds},
  author = {Christoph A. Keller and Beatrix J. Mühlmann},
  journal= {arXiv preprint arXiv:1708.01258},
  year   = {2017}
}

Comments

15 pages, 2 figures. v2: Added proof of conjecture 3

R2 v1 2026-06-22T21:06:11.378Z