Regular multi-horizon Lee-Wick black holes

Burzilla, Nicolo1; Giacchini, Breno L.2; Netto, Tiberio de Paula2; Modesto, Leonardo1

2023-11-01

10.1088/1475-7516/2023/11/067

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS   影响因子和分区

1475-7516

In this paper we carry out a detailed analysis of the static spherically symmetric solutions of a sixth-derivative Lee-Wick gravity model in the effective delta source approximation. Previous studies of these solutions have only considered the particular case in which the real and the imaginary part of the Lee-Wick mass mu = a + ib are equal. However, as we show here, the solutions exhibit an interesting structure when the full parameter space is considered, owing to the oscillations of the metric that depend on the ratio b/a. Such oscillations can generate a rich structure of horizons, a sequence of mass gaps and the existence of multiple regimes for black hole sizes (horizon position gaps). In what concerns the thermodynamics of these objects, the oscillation of the Hawking temperature determines the presence of multiple mass scales for the remnants of the evaporation process and may permit the existence of cold black holes with zero Hawking temperature T and quasi-stable intermediate configurations with T approximate to 0 and a long evaporation lifetime. For the sake of generality, we consider two families of solutions, one with a trivial shift function and the other with a non-trivial one (dirty black hole). The latter solution has the advantage of reproducing the modified Newtonian-limit metric of Lee-Wick gravity for small and large values of r.

Exact solutions black holes and black hole thermodynamics in GR and beyond modified gravity

SCI

英语

第一 ; 通讯

Basic Research Program of the Science, Technology, and Innovation Commission of Shenzhen Municipality[JCYJ20180302174206969]

Astronomy & Astrophysics ; Physics

Astronomy & Astrophysics ; Physics, Particles & Fields

WOS:001110459200010

IOP Publishing Ltd

SPACE SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Univ Fed Juiz Fora, Dept Fis, ICE, BR-36036330 Juiz De Fora, MG, Brazil

Burzilla, Nicolo,Giacchini, Breno L.,Netto, Tiberio de Paula,et al. Regular multi-horizon Lee-Wick black holes[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2023(11).

Burzilla, Nicolo,Giacchini, Breno L.,Netto, Tiberio de Paula,&Modesto, Leonardo.(2023).Regular multi-horizon Lee-Wick black holes.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(11).

Burzilla, Nicolo,et al."Regular multi-horizon Lee-Wick black holes".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .11(2023).