Hawking radiation from rotating AdS black holes in conformal gravity

Abstract

We extend to study Hawking radiation via tunneling in conformal gravity. We adopt Parikh-Wilczek's semi-classical tunneling method and the method of complex-path integral to investigate Hawking radiation from new rotating AdS black holes in conformal gravity. In this paper, the research on Hawking radiation from the rotating black holes is done in a general system, not limited in dragging coordinate systems any longer. Moreover, there existed some shortcomings in the previous derivation of geodesic equations. Different from the massless case, they used a different approach to derive the geodesic equation of the massive particles. Even the treatment was inconsistent with the variation principle of action. To remedy the shortcoming, we improve treatment to deduce the geodesic equations of massive and massless particles in a unified and self-consistent way. In addition, we also recover the Hawking temperature resorting to the complex-path integral method.Comment: Latex, 12 pages, no figur

Massive Vector Particles Tunneling from the Neutral Rotating Anti-de Sitter Black Holes in Conformal Gravity

“…In this section, we will summarize the thermodynamical aspect of the neutral rotating AdS black hole that will be relevant to our research. By introducing the coordinate transformations φ → φ − a/L 2 t, the neutral rotating AdS solution in conformal gravity in the Boyer-Lindquist coordinates can be explicitly written as [29]…”

Hawking radiation of vector particles as tunneling from the apparent horizon of Vaidya black holes

“…The second kind of tunneling method was used to calculate scalar particles, fermions and gravitinos' tunneling from a wide variety of space-times. [30][31][32][33][34][35][36][37][38][39][40][41] Recently, Kruglov 42,43 investigated Hawking radiation of vector particles from static black holes in (1+1) and (1+2) dimensions by using the WKB approximation and the ansatz for the form of the action to the Proca equation. Vector particles (e.g.…”

Quasinormal Modes of Massless Scalar Field Perturbation in Reissner-Nordström-de Sitter Quintessence Spacetime

“…The evolution of the black holes has been studied for a long time since people found them has thermodynamic properties [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The quasinormal modes (QNMs) are important for people to study the evolution and stability problem of the black holes, which show a unique fingerprint that can directly prove the existence of the black holes.…”