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题名: Non-linear massive gravity as a gravitational sigma-model
作者: Arraut, I ;  Chelabi, K
刊名: EPL
出版日期: 2016
卷号: 115, 期号:3, 页码:31001
学科分类: Physics
DOI: http://dx.doi.org/10.1209/0295-5075/115/31001
通讯作者: Arraut, I (reprint author), Tokyo Univ Sci, Fac Sci, Dept Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan.
文章类型: Article
英文摘要: We show the direct analogy between the ghost-free non-linear formulation of massive gravity and the standard sigma-models well understood in the literature. This issue explains why there are two non-trivial family of solutions for the spherically symmetric case inside the non-linear massive gravity formulations with two free parameters alpha and beta. In general, the case beta < alpha(2) has a single physical vacuum state. On the other hand, the case beta = alpha(2) contains a natural vacuum degeneracy. This is in perfect analogy with the sigma-model for scalar fields where depending on the values taken by the parameters of the theory the vacuum can be single or degenerate. Copyright (C) EPLA, 2016
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: SUPERGRAVITY ;  PARTICLES
收录类别: SCI
项目资助者: JSPS ;  CAS Twast Presidential program for PhD students
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21573
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Arraut, I,Chelabi, K. Non-linear massive gravity as a gravitational sigma-model[J]. EPL,2016,115(3):31001.
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