Loop Quantum Cosmology corrections to inflationary models

Autor:	Artymowski, Michal, Lalak, Zygmunt, Szulc, Lukasz
Rok vydání:	2008
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory
Zdroj:	JCAP 0901:004,2009
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2009/01/004
Popis:	In the recent years the quantization methods of Loop Quantum Gravity have been successfully applied to the homogeneous and isotropic Friedmann-Robertson-Walker space-times. The resulting theory, called Loop Quantum Cosmology (LQC), resolves the Big Bang singularity by replacing it with the Big Bounce. We argue that LQC generates also certain corrections to field theoretical inflationary scenarios. These corrections imply that in the LQC the effective sonic horizon becomes infinite at some point after the bounce and that the scale of the inflationary potential implied by the COBE normalisation increases. The evolution of scalar fields immediately after the Bounce becomes modified in an interesting way. We point out that one can use COBE normalisation to establish an upper bound on the quantum of length of LQG. Comment: 16 pages, 1 figure, plain Latex
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0807.0160 Zobrazit plný text záznamu View this record from Arxiv