Generalised N=2 permutation branes

TL;DR

This paper constructs explicit conformal field theory models for generalized permutation branes in N=2 minimal models, crucial for understanding RR charges in Gepner models, and discusses potential generalizations.

Contribution

It provides the first explicit CFT construction for a class of generalized permutation branes, advancing the understanding of their role in string theory.

Findings

Explicit CFT construction for a class of generalized permutation branes

Insights into how these branes account for RR charges in Gepner models

Discussion on extending the construction to other cases

Abstract

Generalised permutation branes in products of N=2 minimal models play an important role in accounting for all RR charges of Gepner models. In this paper an explicit conformal field theory construction of these generalised permutation branes for one simple class of examples is given. We also comment on how this may be generalised to the other cases.