Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 31, Issue 24, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/31/24/242001
Keywords
black hole thermodynamics; critical phenomena; phase transitions
Categories
Funding
- Perimeter Institute for Theoretical Physics
- Natural Sciences and Engineering Research Council of Canada
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research and Innovation
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For any K (= 2k + 1)th order Lovelock gravity with fine-tuned Lovelock couplings, we demonstrate the existence of a special isolated critical point characterized by non-standard critical exponents in the phase diagram of hyperbolic vacuum black holes. In the Gibbs free energy, this corresponds to a place wherefrom two swallowtails emerge, giving rise to two first-order phase transitions between small and large black holes. We believe that this is a first example of a critical point with non-standard critical exponents obtained in a geometric theory of gravity.
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