Abstract
Extended objects such as line or surface operators, interfaces or boundaries play an important role in conformal field theory. Here we propose a systematic approach to the relevant conformal blocks which are argued to coincide with the wave functions of an integrable multi-particle Calogero-Sutherland problem. This generalizes a recent observation in [1] and makes extensive mathematical results from the modern theory of multi-variable hypergeometric functions available for studies of conformal defects. Applications range from several new relations with scalar four-point blocks to a Euclidean inversion formula for defect correlators.
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Isachenkov, M., Liendo, P., Linke, Y. et al. Calogero-Sutherland approach to defect blocks. J. High Energ. Phys. 2018, 204 (2018). https://doi.org/10.1007/JHEP10(2018)204
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DOI: https://doi.org/10.1007/JHEP10(2018)204