Physics of Infinite Complex Structure Limits in eight Dimensions

Understand

We investigate infinite distance limits in the complex structure moduli space of F-theory compactified on K3 to eight dimensions.

• While this is among the simplest possible arenas to test ideas about the Swampland Distance Conjecture, it is nevertheless non-trivial enough to improve our understanding of the physics for these limiting geometries, including phenomena of emergence.
• It also provides a perspective on infinite distance limits from the viewpoint of open strings.
• The paper has two quite independent themes.