Charged Lovelock black holes in the presence of dark fluid with a nonlinear equation of state
College of Physics and Optoelectronic Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
2 Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
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Accepted: 16 January 2020
Published online: 1 February 2020
We consider a model that charged static spherically symmetric black hole is surrounded by dark fluid with nonlinear equation of state . We find that the energy density of the dark fluid can be characterized by two parameters. The derivation of metric solution, as well as the calculation of black hole thermodynamical quantities as functions of horizon radius, are performed. Specially, in D-dimensional Einstein gravity and Gauss–Bonnet gravity cases, we plot the metric functions and corresponding thermodynamical quantities, such as mass, Hawking temperature and heat capacity, by varying the values of spacetime dimensions and dark fluid parameters. The effects of the dark fluid parameters on black hole solutions as well as on thermodynamical stability of black holes are discussed.
© Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature, 2020