A dispersion relation for defect CFT
نویسندگان
چکیده
A bstract We present a dispersion relation for defect CFT that reconstructs two-point functions in the presence of as an integral single discontinuity. The main virtue this formula is it streamlines explicit bootstrap calculations, bypassing resummation conformal blocks. As applications we reproduce known results monodromy defects epsilon-expansion, and new supersymmetric Wilson line at strong coupling $$ \mathcal{N} N = 4 SYM. In particular, derive analytic highest R -symmetry channel single-trace operators arbitrary length.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2023
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep02(2023)255