nLab
coset WZW model

Idea

The generalization of the WZW model where target space is not necessarily a Lie group $G$, but a coset space $G/H$ for some subgroup $H$.

References

• Edward Witten, On holomorphic factorization of WZW and coset models, Comm. Math. Phys. Volume 144, Number 1 (1992), 189-212. (EUCLID)