2017
The portrait of eikonal instability in Lovelock theories
KONOPLYA, Roman and Alexander ZHIDENKOBasic information
Original name
The portrait of eikonal instability in Lovelock theories
Authors
KONOPLYA, Roman (804 Ukraine, belonging to the institution) and Alexander ZHIDENKO (804 Ukraine)
Edition
Journal of Cosmology and Astroparticle Physics, 2017, 1475-7516
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10308 Astronomy
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 5.126
RIV identification code
RIV/47813059:19240/17:A0000058
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000402878200050
Keywords in English
extra dimensions; gravity; modified gravity; GR black holes
Tags
International impact, Reviewed
Changed: 10/4/2018 12:36, RNDr. Jan Hladík, Ph.D.
Abstract
V originále
Perturbations and eikonal instabilities of black holes and branes in the Einstein-Gauss-Bonnet theory and its Lovelock generalization were considered in the literature for several particular cases, where the asymptotic conditions (flat, dS, AdS), the number of spacetime dimensions D, non-vanishing coupling constants (alpha_(1), alpha_(2), alpha_(3) etc.) and other parameters have been chosen in a specific way. Here we give a comprehensive analysis of the eikonal instabilities of black holes and branes for the most general Lovelock theory, not limited by any of the above cases. Although the part of the stability analysis is performed here purely analytically and formulated in terms of the inequalities for the black hole parameters, the most general case is treated numerically and the accurate regions of instabilities are presented. The shared Mathematica (R) code allows the reader to construct the regions of eikonal instability for any desired values of the parameters.