Abstract
Conformal blocks for correlation functions of tensor operators play an increasingly important role for the conformal bootstrap programme. We develop a universal approach to such spinning blocks through the harmonic analysis of certain bundles over a coset of the conformal group. The resulting Casimir equations are given by a matrix version of the Calogero-Sutherland Hamiltonian that describes the scattering of interacting spinning particles in a 1-dimensional external potential. The approach is illustrated in several examples including fermionic seed blocks in 3D CFT where they take a very simple form.
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Schomerus, V., Sobko, E. & Isachenkov, M. Harmony of spinning conformal blocks. J. High Energ. Phys. 2017, 85 (2017). https://doi.org/10.1007/JHEP03(2017)085
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DOI: https://doi.org/10.1007/JHEP03(2017)085