Volume 125, Number 6, March 2019
|Number of page(s)||7|
|Published online||23 April 2019|
Entropy relations and bounds of regular and singular black holes with nonlinear electrodynamics sources
School of Mathematics and Physics, China University of Geosciences - Wuhan 430074, China
Received: 19 September 2018
Accepted: 12 March 2019
In this paper, we study entropy relations and bounds of regular and singular black holes with nonlinear electrodynamics sources. We focus on the regular and singular Bardeen and Hayward black holes in asymptotically flat and AdS spacetimes. For black holes with vanishing effective mass , it is found that the entropy product is always mass-independent in asymptotically flat spacetime, while the entropy sum takes the mass-independent universality in asymptotically AdS spacetime. For the cases with nonzero effective mass in asymptotically flat and AdS spacetimes, entropy relations are both some functions of mass and charge, hence are always mass-dependent. Besides, the non-linear electrodynamics always affects the entropy bounds of horizons.
PACS: 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics / 04.50.Kd – Modified theories of gravity / 04.70.-s – Physics of black holes
© EPLA, 2019
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.