Particle dynamics and geometric optics in Chern–Simons black holes

Journal Article · Sat May 15 04:00:00 EDT 2021 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2021.168435· OSTI ID:23183247

Rahim, Rehana ^[1]; Saifullah, Khalid ^[1]

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1. Department of Mathematics, Quaid-i-Azam University, Islamabad (Pakistan)

Highlights: • Black holes in Chern–Simons modified gravity have been studied. • The effects of the coupling constant of the Chern–Simons gravity on some physical quantities have been investigated. • The dependence of Hawking mass and Penrose process on the coupling constant is studied. • Rotation of the polarization vector is also studied for dependence on the Chern–Simons coupling constant. In this paper we study the effects of the coupling constant of the Chern–Simons modified gravity on some physical properties of black holes. The Hawking mass is one of the proposed definitions of quasilocal mass. We find that, for slowly rotating Chern–Simons black holes, the Hawking mass is independent of the coupling constant. Next, we show the dependence on the centre of mass energy, for two neutral colliding particles, of coupling constant and the rotation parameter. We also investigate energy extraction through Penrose process and find that the energy gain and efficiency of the Penrose process are independent of this coupling constant. Rotation of the polarization vector is also studied for dependence on the Chern–Simons coupling constant.

• OSTI ID: 23183247
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 428; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
79 ASTRONOMY AND ASTROPHYSICS
BLACK HOLES
CENTER-OF-MASS SYSTEM
COUPLING CONSTANTS
EFFICIENCY
GEOMETRY
GRAVITATION
OPTICS
PHYSICAL PROPERTIES
POLARIZATION
ROTATION
VECTORS