We interpret certain strong coupling singularities of the E8 × E8 heterotic string on K3 in terms of exotic six-dimensional theories in which E8 is a gauge symmetry. These theories are closely related to theories obtained at small instanton singularities, which have E8 as a global symmetry.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Astronomy and Astrophysics
- Physics and Astronomy(all)