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题名: Magnetogenesis in bouncing cosmology
作者: Qian, P ;  Cai, YF ;  Easson, DA ;  Guo, ZK
刊名: PHYSICAL REVIEW D
出版日期: 2016
卷号: 94, 期号:8, 页码:83524
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.94.083524
通讯作者: Qian, P ;  Guo, ZK (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China. ;  Qian, P ;  Guo, ZK (reprint author), Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China. ;  Cai, YF (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China. ;  Easson, DA (reprint author), Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. ;  Easson, DA (reprint author), Arizona State Univ, Beyond Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USA.
文章类型: Article
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.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: PRIMORDIAL MAGNETIC-FIELDS ;  EARLY UNIVERSE ;  INFLATION
收录类别: SCI
项目资助者: 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]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21499
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Qian, P,Cai, YF,Easson, DA,et al. Magnetogenesis in bouncing cosmology[J]. PHYSICAL REVIEW D,2016,94(8):83524.
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