Loop quantum cosmology in the cosmic microwave background

7th International Conference on Gravitation and Cosmology

Grain, J.^1

Institut d'Astrophysique Spatiale, CNRS/Université Paris XI Centre Universitaire d'Orsay, Bât. 120-121, 91405 Orsay CEDEX, France^1

关键词: Big Bang;    Cosmic microwave backgrounds;    Early universe;    Loop quantum cosmologies;    Quantum gravity;    Set constraints;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/484/1/012060/pdf
DOI  :  10.1088/1742-6596/484/1/012060

来源: IOP

【 摘 要 】

The primordial universe can be used as a laboratory to set constraints on quantum gravity. In the framework of Loop Quantum Cosmology, we show that such a proposal for quantum gravity, not only solves for the big bang singularity issue, but also naturally generates inflation. Thanks to a quantitative computation of the amount of gravity waves produced in the loopy early universe, we show that future cosmological data on the polarized anisotropies of the Cosmic Microwave Background can be used to probe LQC model of the universe.