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Article overview
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Extended Birkhoff's Theorem in the f(T) Gravity | Han Dong
; Ying-bin Wang
; Xin-he Meng
; | Date: |
27 Mar 2012 | Abstract: | The f(T) theory, a generally modified teleparallel gravity, has been proposed
as an alternative gravity model to account for the dark energy phenomena.
Following our previous work[Xin-he Meng and Ying-bin Wang, EPJC(2011),
arXiv:1107.0629v1], we prove that the Birkhoff’s theorem in a more general
context holds in this communication letter, specifically with the off diagonal
tetrad case. Then, we have discussed respectively the results of the external
vacuum and internal gravitational field in the f(T) gravity framework. The more
extended meaning of this theorem is also discussed. We also discuss the
validity of the Birkhoff’s theorem in the frame of f(T) gravity via conformal
transformation by regarding the Brans-Dicke-like scalar as effective matter.
Both the Jordan and Einstein frames are discussed. | Source: | arXiv, 1203.5890 | Services: | Forum | Review | PDF | Favorites |
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