Higher derivative corrections to the entropic force from holography

摘要

The entropic force has been recently argued to be responsible for dissociation of heavy quarkonia. In this paper, we analyze R-2 corrections and R-4 corrections to the entropic force, respectively. It is shown that for R-2 corrections, increasing lambda(GB) (Gauss-Bonnet factor) leads to increasing the entropic force. While for R-4 corrections, increasing lambda('t Hooft coupling) leads to decreasing the entropic force. Also, we discuss how the entropic force changes with the shear viscosity to entropy density ratio, eta/s, at strong coupling. (C) 2018 Elsevier Inc. All rights reserved.