From Einstein to Horndeski: Holographic Transport Coeffcients in Modified Gravity

Dos Santos, Fabiano Francisco

doi:10.22128/jhap.2024.860.1091

From Einstein to Horndeski: Holographic Transport Coeffcients in Modified Gravity

Document Type : Review article

Author

Fabiano Francisco dos Santos

Departamento de Física, Universidade Federal do Maranhão, Campus Universitario do Bacanga, São Luís (MA), 65080-805, Brazil

10.22128/jhap.2024.860.1091

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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Physics

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Journal of Holography Applications in Physics

Volume 4, Issue 3
September 2024
Pages 1-10

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History

Receive Date: 11 August 2024
Revise Date: 03 September 2024
Accept Date: 15 September 2024

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Journal of Holography Applications in Physics

From Einstein to Horndeski: Holographic Transport Coeffcients in Modified Gravity

Article PDF

Volume 4, Issue 3September 2024Pages 1-10

Volume 4, Issue 3
September 2024
Pages 1-10