Heavy Quark Potential at Finite Temperature in AdS/CFT

Details Heavy Quark Potential at Finite Temperature in AdS/CFT Heavy Quark Potential at Finite Temperature in AdS/CFT

2009-08-18

arxiv.org/abs/0908.2541v1

Nucl.Phys.A830:311c-314c,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure. Contribution to the proceedings of the 21st International Conference on Ultra-Relativistic Nucleus-Nucleus

Scientific paper

10.1016/j.nuclphysa.2009.10.134

A calculation of the heavy quark potential at finite temperature at strong coupling based on the AdS/CFT correspondence is presented. The calculation relies on the method of complex string trajectories and on the introduction of a modified renormalization subtraction. The obtained potential is smooth, negative definite for all quark-antiquark separations, and develops an imaginary part for r > r_c =0.870/\pi T . At large separations the real part of the potential does not exhibit the exponential Debye falloff expected from perturbation theory and instead falls off as a power law, proportional to 1/r^4.

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