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Arraut, I; Chelabi, K1
Non-linear massive gravity as a gravitational sigma-model
Source PublicationEPL
AbstractWe 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
Subject AreaPhysics
Indexed BySCI
Funding OrganizationJSPS ; CAS Twast Presidential program for PhD students
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Document Type期刊论文
Affiliation1.Tokyo Univ Sci, Fac Sci, Dept Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan
2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Arraut, I,Chelabi, K. Non-linear massive gravity as a gravitational sigma-model[J]. EPL,2016,115(3):31001.
APA Arraut, I,&Chelabi, K.(2016).Non-linear massive gravity as a gravitational sigma-model.EPL,115(3),31001.
MLA Arraut, I,et al."Non-linear massive gravity as a gravitational sigma-model".EPL 115.3(2016):31001.
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