The Rank Four Heterotic Modular Invariant Partition Functions
نویسنده
چکیده
In this paper, we develop several general techniques to investigate modular invariants of conformal field theories whose algebras of the holomorphic and anti-holomorphic sectors are different. As an application, we find all such “heterotic” WZNW physical invariants of (horizontal) rank four: there are exactly seven of these, two of which seem to be new. Previously, only those of rank ≤ 3 have been completely classified. We also find all physical modular invariants for su(2)k1 × su(2)k2 , for 22 > k1 > k2, and k1 = 28, k2 < 22, completing the classification of ref. [9].
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تاریخ انتشار 1994