The Dapor-Liegener model of loop quantum cosmology: a dynamical analysis

被引：9
作者：
de Haro, Jaume [1 ]
机构：
[1] Univ Politecn Cataluna, Dept Matemat, Diagonal 647, E-08028 Barcelona, Spain
来源：
EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 11期
关键词：
INFLATION;
D O I：
10.1140/epjc/s10052-018-6402-z
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The Dapor-Liegener model of loop quantum cosmology (LQC), which depicts an emergent universe from a de Sitter regime in the contracting phase is studied from the mathematical viewpoint of dynamical systems and compared with the standard model of LQC. Dealing with perturbations, on the contrary to standard LQC where at early times all the scales are inside the Hubble radius, we show that it is impossible to implement the matter bounce scenario due to the fact that an emergent de Sitter regime in the contracting phase implies that all the scales are outside of the Hubble radius in a past epoch.
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页数：9
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