CHAPLYGIN INFLATION IN LOOP QUANTUM COSMOLOGY

被引：13

作者：

Zhang, Xin ^{[1
]}

Zhang, Jingfei ^{[1
,2
]}

Cui, Jinglei ^{[1
]}

Zhang, Li ^{[1
]}

机构：

[1] NE Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China

[2] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2009年 / 24卷 / 22期

关键词：

Chaplygin inflation; loop quantum cosmology; primordial perturbations; PROBE WMAP OBSERVATIONS; DARK ENERGY; UNIVERSE; GAS; CONSTRAINTS; SCENARIO; FLATNESS; HORIZON; MODEL; MAPS;

D O I：

10.1142/S0217732309030436

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we discuss the inflationary universe in the context of a Chaplygin gas equation of state within the framework of the effective theory of loop quantum cosmology. Under the slow-roll approximation, we calculate the primordial perturbations for this model. We give the general expressions of the scalar spectral index, its running, and the tensor-to-scalar ratio, etc. For the chaotic inflation with a quadratic potential, using the WMAP 5-year results, we determine the parameters of the Chaplygin inflation model in loop quantum cosmology. The results are consistent with the WMAP observations.

引用

页码：1763 / 1773

页数：11

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