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arXiv · 2006.06550

From Einstein to Horndeski: Holographic Transport Coefficients in Modified Gravity

Fabiano F. Santos
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Abstract

This paper examines the holographic computation of bulk and shear viscosity ratios in strongly coupled thermal plasmas using the AdS/BCFT correspondence within Horndeski gravity. We demonstrate that this framework leads to non-zero viscosity-to-entropy ratios ($\zeta/S$ and $\eta/S$) at low temperatures, indicating a break in conformal symmetry. At high temperatures, these ratios approach zero, recovering the expected conformal behavior of quark-gluon plasma. Our findings provide new insights into the hydrodynamic properties of strongly coupled plasmas and offer a more nuanced understanding of QCD-like theories in holographic models.

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Fabiano F. Santos. 2020-06-11. From Einstein to Horndeski: Holographic Transport Coefficients in Modified Gravity. https://doi.org/10.22128/jhap.2024.860.1091

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