# Aspects of asymmetric Gepner models in type II

Dan Israel (LPTHE & IAP)

02.05.2014 at 14:15

In this talk I will present new types of Gepner models in type II

superstrings, based on asymmetric modular invariants. They generalize

asymmetric orbifolds of toroidal or free-fermion compactifications to

interacting conformal field theories. These models break part of

space-time supersymmetry and typically lift a large part of the moduli

space of the underlying CY; for instance a class of models corresponds to

STU N=2 supergravity with no hypermultiplets. Finally I will discuss

possible relations with non-geometric compactifications.

Arnold Sommerfeld Center

Theresienstrasse 37

Room 450