Generalized quark-antiquark potential at weak and strong coupling

Drukker, Nadav; Forini, Valentina

doi:10.1007/JHEP06(2011)131

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Generalized quark-antiquark potential at weak and strong coupling

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Forini, Valentina
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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JHEP2011_131.pdf
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引用

Drukker, N., & Forini, V. (2011). Generalized quark-antiquark potential at weak and strong coupling. Journal of high energy physics: JHEP, 2011(06):. doi:10.1007/JHEP06(2011)131.

引用: https://hdl.handle.net/11858/00-001M-0000-0011-F035-C

要旨

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.