Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the š’© = 4 supersymmetric Yang-Mills theory at large Nc is carried out to the sub-leading term in the large ā€™t Hooft coupling at a nonzero temperature. The strong coupling corresponds to the semiclassical expansion of the string-sigma model, the gravity dual of the Wilson loop operator, with the sub-leading term expressed in terms of functional determinants of fluctuations. The contribution of these determinants are evaluated numerically. We also discuss some physics consequences of the subleading heavy quark potential.

Topics
Mesons, Quarks, Anti-de Sitter/conformal field theory correspondence, Sigma model, Yang-Mills theory, Wilson loops
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Ā© 2012 American Institute of Physics.
2012
American Institute of Physics
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