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Backreaction effects due to matter coupled higher derivative gravity

2014/09/30 by Lata Kh Joshi, P. Ramadevi · 1 citation
Physics and Astronomy · #Back-reaction #Black Holes and Theoretical Physics #Classical mechanics #Computation #Cosmology and Gravitation Theories #Curvature #Entropy (arrow of time) #Geometry #Gravitation #High-Energy Particle Collisions Research #Mathematical physics #Physics #Plasma #Quantum electrodynamics #Quantum mechanics #Quark–gluon plasma #Scalar (mathematics) #Shear viscosity #Spacetime #Thermodynamics #Viscosity #Volume viscosity #hep-th

paper · pdf · doi:10.1142/s0217732315500650

14+1 pages, minor typos corrected,added appendix and references

arxiv created 2014/11/28 · openalex publication_date 2015/04/08 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

AdS-hydrodynamics has proven to be a useful tool for obtaining transport coefficients observed in the collective flow of strongly coupled fluids like quark gluon plasma (QGP). Particularly, the ratio of shear viscosity to entropy density η/s obtained from elliptic flow measurements can be matched with the computation done in the dual gravity theory. The experimentally observed temperature dependence of η/s requires the study of scalar matter coupled AdS gravity including higher derivative curvature corrections. We obtain the backreaction to the metric for such a matter coupled AdS gravity in D-dimensional spacetime due to the higher derivative curvature corrections. Then, we present the backreaction corrections to shear viscosity η and entropy density s.

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