Does a Cloud of Strings Affect Shear Viscosity Bound?
High Energy Physics - Theory
2019-09-23 v2
Abstract
The Einstein AdS black brane with a cloud of strings background in context of massive gravity is introduced. There is a momentum dissipation on the boundary because of graviton mass on the bulk. The ratio of shear viscosity to entropy density is calculated for this solution. This value violates the KSS bound if we apply the Dirichlet boundary and regularity on the horizon conditions. Our result shows that this value is independent of the cloud of strings.
Cite
@article{arxiv.1905.12856,
title = {Does a Cloud of Strings Affect Shear Viscosity Bound?},
author = {Mehdi Sadeghi and Hadi Ranjbari},
journal= {arXiv preprint arXiv:1905.12856},
year = {2019}
}
Comments
12 pages, no figure, v2: minor changes and references added