Abstract
Using the shadow formalism we find global conformal blocks of torus CFT2. It is shown that n-point torus blocks in the “necklace” channel (a loop with n legs) are expressed in terms of a hypergeometric-type function which we refer to as the necklace function.
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Acknowledgments
We are grateful to Daniil Zherikhov, Vladimir Khiteev, and Mikhail Pavlov for discussions. S.M. was partially supported by the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS”.
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Alkalaev, K., Mandrygin, S. Torus shadow formalism and exact global conformal blocks. J. High Energ. Phys. 2023, 157 (2023). https://doi.org/10.1007/JHEP11(2023)157
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DOI: https://doi.org/10.1007/JHEP11(2023)157