Weak cosmic censorship conjecture in the pure Lovelock gravity. Issue 10 (1st October 2022)

• Record Type: Journal Article
• Authors: Shaymatov, Sanjar; Dadhich, Naresh
• Is Part Of: Journal of cosmology and astroparticle physics. Volume 2022:Issue 10(2022)
• Publication Date: 2022-10-01
• Subjects: astrophysical black holes -- cosmic singularity -- Gauss-Bonnet-Lovelock-Horndeski-Palatini etc gravity theories -- modified gravity; Cosmology -- Periodicals; Astrophysics -- Periodicals; 523.0105
• DOI: 10.1088/1475-7516/2022/10/060
• Languages: English
• ISSNs: 1475-7516

Abstract

Abstract: It is well known that a rotating black hole in four dimension could be overspun by linear order test particle accretion which however always gets overturned when non-linear perturbations are included. It turns out that in the Einstein gravity, repulsion due to rotation dominates over attraction due to mass in dimensions, D > 5, and consequently black hole cannot be overspun even for linear order accretion. For the pure Lovelock rotating black hole, this dimensional threshold is D > 4 DN + 1 where N is degree of single N th order term in the Lovelock polynomial in the action. Thus the pure Lovelock rotating black holes always obey the weak cosmic censorship conjecture (WCCC) in all dimensions greater than 4 N + 1. Since overall gravity being repulsive beyond this dimensional threshold, how is rotating black hole then formed there?