The effect of chemical potential on imaginary potential and entropic   force
  Imaginary potential and entropic force represent different mechanisms for melting the heavy quarkonium. In this paper, we study the chemical potential effect on these two quantities with respect to a moving quarkonium from the AdS/CTF duality. We observe that for both mechanisms the chemical potential has the same effect: the presence of the chemical potential tends to decrease the dissociation length. 
Zi-qiang Zhang, De-fu Hou and Gang Chen
hep-th