Holographic transport beyond the supergravity approximation

Autor: Alex Buchel, Sera Cremonini, Laura Early
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-37 (2024)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP04(2024)032
Popis: 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 Weyl4 corrections, encoding the finite ’t Hooft coupling corrections of the boundary theory, and Riemann2 corrections, responsible for non-equal central charges c ≠ 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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