Our Understanding on Landau-Raychaudhuri Cosmology

15th International Conference on Strangeness in Quark Matter

Diab, Abdel Magied^1,2 ; Tawfik, Abdel Nasser^1,2

Egyptian Center for Theoretical Physics (ECTP), Modern University for Technology and Information (MTI), Cairo

11571, Egypt^1

World Laboratory for Cosmology and Particle Physics (WLCAPP), Cairo, Egypt^2

关键词: Big Bang;    Black holes;    Dispersion relations;    Fixed point methods;    Line element;    Quantum correction;    Schwarzschild;    Uncertainty principles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012113/pdf
DOI  :  10.1088/1742-6596/668/1/012113

来源: IOP

【 摘 要 】

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.