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题名: Helical phase inflation
作者: Li, TJ;  Li, ZJ;  Nanopoulos, DV
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 91, 期号:6, 页码:61303
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.91.061303
通讯作者: Li, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, KITPC, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We show that the quadratic inflation can be realized by the phase of a complex field with helicoid potential. Remarkably, this helicoid potential can be simply realized in minimal supergravity. The global U(1) symmetry of the Kahler potential introduces a flat direction and evades the eta problem automatically. So such inflation is technically natural. The phase excursion is super-Planckian as required by the Lyth bound, while the norm of the complex field can be suppressed in the sub-Planckian region. This model resolves the ultraviolet sensitive problem of the large field inflation; besides, it also provides a new type of monodromy inflation in supersymmetric field theory with consistent field stabilization.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: NO-SCALE SUPERGRAVITY ;  FLATNESS ;  UNIVERSE ;  HORIZON ;  MODELS
收录类别: SCI
项目资助者: U.S. DOE [DE-FG03-95-ER-40917] ;  Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ;  National Basic Research Program of China (973 Program) [2010CB833000]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21059
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Recommended Citation:
Li, TJ,Li, ZJ,Nanopoulos, DV. Helical phase inflation[J]. PHYSICAL REVIEW D,2015,91(6):61303.
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