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New Bi-Gravity from New Massive Garvity | | A. Akhavan
; M. Alishahiha
; A. Naseh
; A. Nemati
; A. Shirzad
; | | Date: |
10 Mar 2016 | | Abstract: | Using the action of three dimensional New Massive Gravity (NMG) we construct
a new bi-gravity in three dimensions. This can be done by promoting the rank
two auxiliary field appearing in the expression of NMG’s action into a
dynamical field. We show that small fluctuations around the AdS vacuum of the
model are non-tachyonic and ghost free within certain range of the parameters
of the model. We study central charges of the dual field theory and observe
that in this range they are positive too. This suggests that the proposed model
might be a consistent three dimensional bi-gravity. | | Source: | arXiv, 1603.3270 | | Services: | Forum | Review | PDF | Favorites | |
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