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arXiv · 2312.05377

Holographic transport beyond the supergravity approximation

Alex Buchel·Sera Cremonini·Laura Early
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Abstract

We set up a unified framework to efficiently compute the shear and bulk viscosities of strongly coupled gauge theories with gravitational holographic duals involving higher derivative corrections. We consider both Weyl$^4$ corrections, encoding the finite 't Hooft coupling corrections of the boundary theory, and Riemann$^2$ corrections, responsible for non-equal central charges $c\ne a$ of the theory at the ultraviolet fixed point. Our expressions for the viscosities in higher derivative holographic models are extracted from a radially conserved current and depend only on the horizon data.

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Alex Buchel, Sera Cremonini, Laura Early. 2023-12-08. Holographic transport beyond the supergravity approximation. https://arxiv.org/abs/2312.05377

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