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New meromorphic CFTs from cosets

High Energy Physics - Theory 2023-08-04 v1 Mathematical Physics math.MP Number Theory Quantum Algebra Representation Theory

Abstract

In recent years it has been understood that new rational CFTs can be discovered by applying the coset construction to meromorphic CFTs. Here we turn this approach around and show that the coset construction, together with the classification of meromorphic CFT with c24c\leq 24, can be used to predict the existence of new meromorphic CFTs with c32c\geq 32 whose Kac-Moody algebras are non-simply-laced and/or at levels greater than 1. This implies they are non-lattice theories. Using three-character coset relations, we propose 34 infinite series of meromorphic theories with arbitrarily large central charge, as well as 46 theories at c=32c=32 and c=40c=40.

Cite

@article{arxiv.2207.04061,
  title  = {New meromorphic CFTs from cosets},
  author = {Arpit Das and Chethan N. Gowdigere and Sunil Mukhi},
  journal= {arXiv preprint arXiv:2207.04061},
  year   = {2023}
}

Comments

24 pages, 7 tables

R2 v1 2026-06-25T00:46:02.493Z