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题名: Helical Phase Inflation and Monodromy in Supergravity Theory
作者: Li, TJ;  Li, ZJ;  Nanopoulos, DV
刊名: ADVANCES IN HIGH ENERGY PHYSICS
出版日期: 2015
期号: 0, 页码:397410
学科分类: Physics
DOI: http://dx.doi.org/10.1155/2015/397410
通讯作者: Li, ZJ (reprint author), Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA.
文章类型: Article
英文摘要: We study helical phase inflation which realizes "monodromy inflation" in supergravity theory. In the model, inflation is driven by the phase component of a complex field whose potential possesses helicoid structure. We construct phase monodromy based on explicitly breaking global U(1) symmetry in the superpotential. By integrating out heavy fields, the phase monodromy from single complex scalar field is realized and the model fulfills natural inflation. The phase-axion alignment is achieved from explicitly symmetry breaking and gives super-Planckian phase decay constant. The F-termscalar potential provides strong field stabilization for all the scalars except inflaton, which is protected by the approximate global U(1) symmetry. Besides, we show that helical phase inflation can be naturally realized in no-scale supergravity with U(2, 1)/U(2) U(1) symmetry since the supergravity setup needed for phase monodromy is automatically provided in the no-scale Kahler potential. We also demonstrate that helical phase inflation can be reduced to another well-known supergravity inflation model with shift symmetry. Helical phase inflation is free from the UV-sensitivity problem although there is super-Planckian field excursion, and it suggests that inflation can be effectively studied based on supersymmetric field theory while a UV-completed framework is not prerequisite.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: IMAGINARY STAROBINSKY MODEL ;  NATURAL INFLATION ;  CHAOTIC INFLATION
收录类别: SCI
项目资助者: 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/311006/21121
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, TJ,Li, ZJ,Nanopoulos, DV. Helical Phase Inflation and Monodromy in Supergravity Theory[J]. ADVANCES IN HIGH ENERGY PHYSICS,2015(0):397410.
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