1. Our Understanding on Landau-Raychaudhuri Cosmology
- Author
-
Abdel Nasser Tawfik and Abdel Magied Diab
- Subjects
Big Bang ,Physics ,History ,COSMIC cancer database ,010308 nuclear & particles physics ,Line element ,Astrophysics::High Energy Astrophysical Phenomena ,01 natural sciences ,Cosmology ,Cosmic space ,Computer Science Applications ,Education ,General Relativity and Quantum Cosmology ,Theoretical physics ,Fixed-point iteration ,Dispersion relation ,0103 physical sciences ,010306 general physics ,Quantum - Abstract
Recent developments to the generalized uncertainty principles (GUPs) and the modified dispersion relations (MDRs) play an important role in estimating the quantum corrections to the cosmic line element. We first apply both approaches to de Sitter-Schwarzschild and Reissner-Nordstrom black holes. Then from the fixed point method, the modified Landau- Raychaudhuri equations are derived in emergent cosmic space. We conclude that (non-)singular big bang solutions are obviously model dependent.
- Published
- 2016