Magnetogenesis in bouncing cosmology

doi:http://dx.doi.org/10.1103/PhysRevD.94.083524

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Magnetogenesis in bouncing cosmology
	Qian, P ; Cai, YF ; Easson, DA ; Guo, ZK
刊名	PHYSICAL REVIEW D
	2016
卷号	94 期号:8 页码:83524
关键词	PRIMORDIAL MAGNETIC-FIELDS EARLY UNIVERSE INFLATION
DOI	http://dx.doi.org/10.1103/PhysRevD.94.083524
英文摘要	We consider the process of magnetogenesis in the context of nonsingular bounce cosmology. We show that large primordial magnetic fields can be generated during contraction without encountering strong coupling and backreaction issues. The fields may seed large-scale magnetic fields with observationally interesting strengths. This result leads to a theoretical constraint on the relation of the energy scale of the bounce cosmology to the number of effective e-foldings of the contracting phase in the case of scale invariance for the power spectrum of primordial magnetic fields. We show that this constraint can be satisfied in a sizable region of the parameter space for the nonsingular bounce cosmology.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	National Natural Science Foundation of China [11575272, 11335012, 11421303] ; Strategic Priority Research Program of CAS [XDB23030100] ; Key Research Program of Frontier Sciences of CAS [QYZDJ-SSWSYS006] ; Chinese National Youth Thousand Talents Program ; USTC start-up funding [KY2030000049]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23211]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Easson, Damien A.] Arizona State Univ, Beyond Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USA 2.Univ Sci & Technol China, Chinese Acad Sci, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 3.[Easson, Damien A.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA 4.[Qian, Peng 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qian, P,Cai, YF,Easson, DA,et al. Magnetogenesis in bouncing cosmology[J]. PHYSICAL REVIEW D,2016,94(8):83524.
APA	Qian, P,Cai, YF,Easson, DA,&Guo, ZK.(2016).Magnetogenesis in bouncing cosmology.PHYSICAL REVIEW D,94(8),83524.
MLA	Qian, P,et al."Magnetogenesis in bouncing cosmology".PHYSICAL REVIEW D 94.8(2016):83524.