English

K3 surfaces, modular forms, and non-geometric heterotic compactifications

High Energy Physics - Theory 2015-07-14 v3 Algebraic Geometry

Abstract

We construct non-geometric compactifications by using the F-theory dual of the heterotic string compactified on a two-torus, together with a close connection between Siegel modular forms of genus two and the equations of certain K3 surfaces. The modular group mixes together the K\"ahler, complex structure, and Wilson line moduli of the torus yielding weakly coupled heterotic string compactifications which have no large radius interpretation.

Keywords

Cite

@article{arxiv.1406.4873,
  title  = {K3 surfaces, modular forms, and non-geometric heterotic compactifications},
  author = {Andreas Malmendier and David R. Morrison},
  journal= {arXiv preprint arXiv:1406.4873},
  year   = {2015}
}

Comments

32 pages. v3 has minor changes and additional references

R2 v1 2026-06-22T04:41:51.628Z