Impure Aspects of Supersymmetric Wilson Loops

Details Impure Aspects of Supersymmetric Wilson Loops Impure Aspects of Supersymmetric Wilson Loops

2012-02-28

arxiv.org/abs/1202.6393v1

Physics

High Energy Physics

High Energy Physics - Theory

40 pages, 4 figures

Scientific paper

We study a general class of supersymmetric Wilson loops operator in N = 4 super Yang-Mills theory, obtained as orbits of conformal transformations. These loops are the natural generalization of the familiar circular Wilson-Maldacena operator and their supersymmetric properties are encoded into a Killing spinor that is not pure. We present a systematic analysis of their scalar couplings and of the preserved supercharges, modulo the action of the global symmetry group, both in the compact and in the non-compact case. The quantum behavior of their expectation value is also addressed, in the simplest case of the Lissajous contours: explicit computations at weak-coupling, through Feynman diagrams expansion, and at strong-coupling, by means of AdS/CFT correspondence, suggest the possibility of an exact evaluation.

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