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
收藏
页码：1763 / 1773
页数：11
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