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Towards nonsingular rotating compact object in ghost-free infinite derivative gravity.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . 10/15/2018, Vol. 98 Issue 8, p1-1. 1p. - Publication Year :
- 2018
-
Abstract
- The vacuum solution of Einstein's theory of general relativity provides a rotating metric with a ring singularity, which is covered by the inner and outer horizons and an ergo region. In this paper, we will discuss how ghost-free, quadratic curvature, infinite derivative gravity (IDG) may resolve the ring singularity. In IDG the nonlocality of the gravitational interaction can smear out the delta-Dirac source distribution by making the metric potential finite everywhere including at r=0. We show that the same feature also holds for a rotating metric. We can resolve the ring singularity such that no horizons are formed in the linear regime by smearing out a delta-source distribution on a ring. We will also show that the Kerr metric does not solve the full nonlinear equations of motion of ghost-free quadratic curvature IDG. [ABSTRACT FROM AUTHOR]
- Subjects :
- *KERR electro-optical effect
*GENERAL relativity (Physics)
Subjects
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 98
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 133021746
- Full Text :
- https://doi.org/10.1103/PhysRevD.98.084041