TITLE:
Trials to Resolve Black Holes Instabilities in Brane World Cosmology Models
AUTHORS:
Poula Tadros, Mohamed Assaad Abdel-Raouf
KEYWORDS:
Brane World Cosmology, String Cosmology, Black Holes
JOURNAL NAME:
Journal of High Energy Physics, Gravitation and Cosmology,
Vol.9 No.2,
April
4,
2023
ABSTRACT: In this letter, we report on our trials to remove the instability of black holes in brane world cosmological models consisting of two branes and a bulk. In order to resolve this problem, general types of interaction potentials were employed. Careful analyses have shown that although the black holes instabilities were removed, a sort of arbitrariness adherent to the motion of the two branes towards each other has taken place leading to an unstable system. Thus, the models seem to us rather paradoxical.