Bulk Viscosity in Holographic Lifshitz Hydrodynamics
High Energy Physics - Theory
2015-06-18 v1 Statistical Mechanics
Strongly Correlated Electrons
Fluid Dynamics
Abstract
We compute the bulk viscosity in holographic models dual to theories with Lifshitz scaling and/or hyperscaling violation, using a generalization of the bulk viscosity formula derived in arXiv:1103.1657 from the null focusing equation. We find that only a class of models with massive vector fields are truly Lifshitz scale invariant, and have a vanishing bulk viscosity. For other holographic models with scalars and/or massless vector fields we find a universal formula in terms of the dynamical exponent and the hyperscaling violation exponent.
Cite
@article{arxiv.1312.6380,
title = {Bulk Viscosity in Holographic Lifshitz Hydrodynamics},
author = {Carlos Hoyos and Bom Soo Kim and Yaron Oz},
journal= {arXiv preprint arXiv:1312.6380},
year = {2015}
}
Comments
24 pages