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|Title:||Thermodynamics of hairy black holes in Lovelock gravity||Authors:||Hennigar, Robie A.
Mann, Robert B.
|Keywords:||Classical Theories of Gravity
|Issue Date:||2017||Source:||Hennigar, R. A., Tjoa, E., & Mann, R. B. (2017). Thermodynamics of hairy black holes in Lovelock gravity. Journal of High Energy Physics, 2017(2), 70-.||Series/Report no.:||Journal of High Energy Physics||Abstract:||We perform a thorough study of the thermodynamic properties of a class of Lovelock black holes with conformal scalar hair arising from coupling of a real scalar field to the dimensionally extended Euler densities. We study the linearized equations of motion of the theory and describe constraints under which the theory is free from ghosts/tachyons. We then consider, within the context of black hole chemistry, the thermodynamics of the hairy black holes in the Gauss-Bonnet and cubic Lovelock theories. We clarify the connection between isolated critical points and thermodynamic singularities, finding a one parameter family of these critical points which occur for well-defined thermodynamic parameters. We also report on a number of novel results, including ‘virtual triple points’ and the first example of a ‘λ-line’ — a line of second order phase transitions — in black hole thermodynamics.||URI:||https://hdl.handle.net/10356/89470
|ISSN:||1126-6708||DOI:||10.1007/JHEP02(2017)070||Rights:||© 2017 The Author(s). This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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