Primordial power spectrum from the Dapor-Liegener model of loop quantum cosmology

被引：32

作者：

Agullo, Ivan ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

来源：

GENERAL RELATIVITY AND GRAVITATION | 2018年 / 50卷 / 07期

基金：

美国国家科学基金会;

关键词：

Quantum cosmology; Loop quantum gravity; Cosmic microwave background;

D O I：

10.1007/s10714-018-2413-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the predictions for the power spectrum of scalar perturbations from a recent new proposal for the effective Hamiltonian of loop quantum cosmology. The model provides an attractive picture of the early cosmos, in which our classical Friedmann-Lemaltre-Robertson-Walker universe emerges from a quantum phase where the spacetime curvature remains constant and of Planckian size. We compare the predictions for the cosmic microwave background with previous results obtained within loop quantum cosmology, and discuss the differences and similarities. The analysis provides an example of the way differences between quantization schemes can be translated to physical observables.

引用

页数：21

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