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- Title
Black holes and non-perturbative gravitational waves in f(R) gravity.
- Authors
Liu, Chunmei; Zhang, Hongsheng
- Abstract
Exact solutions of spherically symmetric black hole and gravitational wave are explored in f(R) gravity in arbitrary dimension. We find two exact solutions for the radiation and absorption of null dust. In the framework of general relativity, the Birkhoff theorem strictly forbids the existence of spherical gravitational waves in vacuum space. We find spherical non-perturbative gravitational waves, which are shear-free, twist-free, but expanding.
- Subjects
BLACK holes; SPHERICAL waves; GRAVITY; RADIATION absorption; GRAVITATIONAL waves
- Publication
European Physical Journal C -- Particles & Fields, 2023, Vol 83, Issue 12, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-023-12261-9