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arXiv · 1105.5144

Generalized quark-antiquark potential at weak and strong coupling

Nadav Drukker·Valentina Forini
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Abstract

We study a two-parameter family of Wilson loop operators in N=4 supersymmetric Yang-Mills theory which interpolates smoothly between the 1/2 BPS line or circle and a pair of antiparallel lines. These observables capture a natural generalization of the quark-antiquark potential. We calculate these loops on the gauge theory side to second order in perturbation theory and in a semiclassical expansion in string theory to one-loop order. The resulting determinants are given in integral form and can be evaluated numerically for general values of the parameters or analytically in a systematic expansion around the 1/2 BPS configuration. We comment about the feasibility of deriving all-loop results for these Wilson loops.

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Nadav Drukker, Valentina Forini. 2011-05-25. Generalized quark-antiquark potential at weak and strong coupling. https://doi.org/10.1007/jhep06(2011)131

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