The effective field theory of nonsingular cosmology: II

doi:http://dx.doi.org/10.1140/epjc/s10052-017-4938-y

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	The effective field theory of nonsingular cosmology: II
	Cai, Y; Li, HG; Qiu, TT; Piao, YS; Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
刊名	EUROPEAN PHYSICAL JOURNAL C
	2017
卷号	77 期号:6 页码:369
DOI	http://dx.doi.org/10.1140/epjc/s10052-017-4938-y
英文摘要	Based on the effective field theory (EFT) of cosmological perturbations, we explicitly clarify the pathology in nonsingular cubic Galileon models and show how to cure it in EFT with new insights into this issue. With the least set of EFT operators that are capable to avoid instabilities in nonsingular cosmologies, we construct a nonsingular model dubbed the Genesis-inflation model, in which a slowly expanding phase (namely, Genesis) with increasing energy density is followed by slow-roll inflation. The spectrum of the primordial perturbation may be simulated numerically, which shows itself a large-scale cutoff, as the large-scale anomalies in CMB might be a hint for.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22040]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Cai, Y,Li, HG,Qiu, TT,et al. The effective field theory of nonsingular cosmology: II[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(6):369.
APA	Cai, Y,Li, HG,Qiu, TT,Piao, YS,&Cai, Y .(2017).The effective field theory of nonsingular cosmology: II.EUROPEAN PHYSICAL JOURNAL C,77(6),369.
MLA	Cai, Y,et al."The effective field theory of nonsingular cosmology: II".EUROPEAN PHYSICAL JOURNAL C 77.6(2017):369.