2016/02/24 by Mariano Cadoni, Antonia M. Frassino, Matteo Tuveri · 8 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black brane #Black hole thermodynamics #Brane cosmology #Charged black hole #Charged particle #Entropy (arrow of time) #Shear viscosity #Universality (dynamical systems) #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep05(2016)101
published in Journal of High Energy Physics 2016(5) (Springer Nature) · 28 pages, 3 figures, some references added
arxiv created 2016/02/24 · openalex publication_date 2016/05/01 · openalex created_date 2016/06/24 · arxiv updated 2016/11/11 · openalex updated_date 2026/08/05
We investigate general features of charged Lovelock black branes by giving a detailed description of geometrical, thermodynamic and holographic properties of charged Gauss-Bonnet (GB) black branes in five dimensions. We show that when expressed in terms of effective physical parameters, the thermodynamic behaviour of charged GB black branes is completely indistinguishable from that of charged Einstein black branes. Moreover, the extremal, near-horizon limit of the two classes of branes is exactly the same as they allow for the same AdS2 × R 3, near-horizon, exact solution. This implies that, although in the UV the associated dual QFTs are different, they flow in the IR to the same fixed point. The calculation of the shear viscosity to entropy ratio η/s confirms these results. Despite the GB dual plasma has in general a non-universal temperature-dependent η/s, it flows monotonically to the universal value 1/4π in the IR. For negative (positive) GB coupling constant, η/s is an increasing (decreasing) function of the temperature and the flow respects (violates) the KSS bound.