Large- c conformal ( n?≤?6)-point blocks with superlight weights and holographic Steiner trees

摘要

In this note we study CFT2Virasoro conformal blocks with heavy operators in the large-climit in the context of AdS3/CFT2correspondence. We compute the lengths of the holographic Steiner trees dual to the 5-point and 6-point conformal blocks using the superlight approximation when one or more dimensions are much less than the others. These results are generalized forN-point holographic Steiner trees dual to(N+1)-point conformal blocks with superlight weights.