The Subleading order Heavy-Quark Potential from AdS/CFT and Meson Melting

摘要

Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the N = 4 supersymmetric Yang-Mills theory at large N_c is carried out to the sub-leading term in the large 't Hooft coupling at a nonzero temperature. The strong coupling corresponds to the semi-classical 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.