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Universe scenarios from loop quantum cosmology
Author(s) -
Bojowald M.
Publication year - 2006
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200510191
Subject(s) - loop quantum cosmology , quantum cosmology , physics , cosmology , singularity , loop quantum gravity , theoretical physics , universe , quantum , initial singularity , quantum gravity , boundary (topology) , classical mechanics , quantum mechanics , de sitter universe , mathematical analysis , mathematics
Loop quantum cosmology is an application of recent developments for a non‐perturbative and background independent quantization of gravity to a cosmological setting. Characteristic properties of the quantization such as discreteness of spatial geometry entail physical consequences for the structure of classical singularities as well as the evolution of the very early universe. While the singularity issue in general requires one to use difference equations for a wave function of the universe, phenomenological scenarios for the evolution are based on effective equations implementing the main quantum modifications. These equations show generic bounces as well as inflation in diverse models, which have been combined to more complicated scenarios.