Harmonic Analysis in d-dimensional Superconformal Field Theory

Abstract

Superconformal blocks and crossing symmetry equations are among central ingredients in any superconformal field theory. We review the approach to these objects rooted in harmonic analysis on the superconformal group that was put forward in [J. High Energy Phys. 2020 (2020), no. 1, 159, 40 pages, arXiv:1904.04852] and [J. High Energy Phys. 2020 (2020), no. 10, 147, 44 pages, arXiv:2005.13547]. After lifting conformal four-point functions to functions on the superconformal group, we explain how to obtain compact expressions for crossing constraints and Casimir equations. The later allow to write superconformal blocks as finite sums of spinning bosonic blocks.

arXiv commentpublished version

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• Gaudin Models and Multipoint Conformal Blocks III: Comb channel coordinates and OPE factorisation
• Universal Spinning Casimir Equations and Their Solutions