Some Comments on the Holographic Heavy Quark Potential in a Thermal Bath
  The heavy quark potential of a thermal Yang-Mills theory in strong coupling limit is explored in terms of the holographic principle. With a fairly general AdS/QCD metric the heavy quark potential displays a kink-like screening in the plasma phase. This behavior may conflict the causality of a field theory that is mathematically equivalent to the thermal Yang-Mills. 
Yan Wu, Defu Hou, and Hai-cang Ren
hep-ph hep-th nucl-th