Quasinormal modes of Gauss-Bonnet-AdS black holes: towards holographic description of finite coupling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F17%3AA0000052" target="_blank" >RIV/47813059:19240/17:A0000052 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007%2FJHEP09(2017)139" target="_blank" >https://link.springer.com/article/10.1007%2FJHEP09(2017)139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP09(2017)139" target="_blank" >10.1007/JHEP09(2017)139</a>

Result language

angličtina

Original language name

Quasinormal modes of Gauss-Bonnet-AdS black holes: towards holographic description of finite coupling

Original language description

Here we shall show that there is no other instability for the Einstein-Gauss-Bonnet-anti-de Sitter (AdS) black holes, than the eikonal one and consider the features of the quasinormal spectrum in the stability sector in detail. The obtained quasinormal spectrum consists from the two essentially different types of modes: perturbative and non-perturbative in the Gauss-Bonnet coupling alpha. The sound and hydrodynamic modes of the perturbative branch can be expressed through their Schwazrschild-AdS limits by adding a linear in alpha correction to the damping rates: omega approximate to Re omega_(SAdS) - Im omega_(SAdS) (1 - alpha ((D + 1)(D - 4)/2R^(2)))i, where R is the AdS radius. The non-perturbative branch of modes consists of purely imaginary modes, whose damping rates unboundedly increase when alpha goes to zero. When the black hole radius is much larger than the anti-de Sitter radius R, the regime of the black hole with planar horizon (black brane) is reproduced. If the Gauss-Bonnet coupling alpha (or used in holography lambda_(GB)) is not small enough, then the black holes and branes suffer from the instability, so that the holographic interpretation of perturbation of such black holes becomes questionable, as, for example, the claimed viscosity bound violation in the higher derivative gravity. For example, D = 5 black brane is unstable at vertical bar lambda_(GB)vertical bar &gt; 1/8 and has anomalously large relaxation time when approaching the threshold of instability.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Volume of the periodical

neuveden

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

23

Pages from-to

'139-i,1'-'139-22'

UT code for WoS article

000412097500004

EID of the result in the Scopus database

2-s2.0-85030169827