English

Shift orbifolds, decompactification limits, and lattices

High Energy Physics - Theory 2026-02-11 v2 Representation Theory

Abstract

We describe the general shift orbifold of a Narain CFT and use this to investigate decompactification limits in the heterotic Narain moduli space. We also comment on higher rank theories and describe some applications to the CFT based on the Leech lattice and its shift orbifolds.

Cite

@article{arxiv.2502.18453,
  title  = {Shift orbifolds, decompactification limits, and lattices},
  author = {Dan Israel and Ilarion V. Melnikov and Yann Proto},
  journal= {arXiv preprint arXiv:2502.18453},
  year   = {2026}
}

Comments

33 pages; v2: minor clarifications

R2 v1 2026-06-28T21:57:41.121Z