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Résumé |
Studying the lightcone limit of CFT correlation functions has been one of the
leading methods to analyse the crossing symmetry analytically. In a CFT with a
twist gap, a 4-point function of identical scalars leads to interesting
predictions of the existence of families of infinite double-twist operators and
their OPE data. However a complete knowledge of the CFT spectrum is only
accessible from bootstrapping correlators with non-identical external operators
with arbitrary spin, which is in general a difficult problem. Alternatively one
can look at correlators of more than four identical scalars which, via OPE,
captures the same information. I will discuss how to systematically set up the
lightcone bootstrap for 5- and 6-point functions of identical scalars. |
