Non singular, bouncing M theory universe

Autor:	Chhatoi, Saroj Prasad, Rama, S. Kalyana
Rok vydání:	2020
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	We propose a set of equations as a simple model for non singular evolutions of a $10 + 1$ dimensional M theory universe. Our model uses ideas from Loop Quantum Cosmology and offers a solution to the important problem of singularity resolutions. We solve the equations numerically and find that an M theory universe in this model evolves non singularly and with a bounce : going back in time, its density reaches a maximum and decreases thereafter whereas its physical size reaches a non vanishing minimum and increases thereafter. Taking the constituents of the universe to be the most entropic ones (which are four sets of intersecting M branes) leads to an effectively $3 + 1$ dimensional spacetime as the M theory universe expands, both in the infinite past and future. Comment: Latex file. 19 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2002.10161 Zobrazit plný text záznamu View this record from Arxiv