paper

Spin chain integrability in non-supersymmetric Wilson loops

arXiv:1810.04643 · doi:10.1007/JHEP12(2018)050

Abstract

We study the 1-loop dilatation operator for insertions of composite operators in a generalized Wilson loop in super Yang-Mills, which interpolates between the supersymmetric Wilson-Maldacena loop and the ordinary Wilson loop with no scalar coupling. For scalar insertions, we show that the 1-loop dilatation operator is integrable for the endpoints of the interpolation, i.e. either for the Wilson-Maldacena or the ordinary Wilson loop. Moreover, we also show that integrability persists for insertions in the ordinary Wilson loop, even when the term making the spin chain length dynamical is included.

19 pages, 3 figures, references added

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