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Spherically Symmetric Solutions in Ghost-Free Massive Gravity | | D. Comelli
; M. Crisostomi
; F. Nesti
; L. Pilo
; | | Date: |
22 Oct 2011 | | Abstract: | Recently, a class of theories of massive gravity has been shown to be
ghost-free. We study the spherically symmetric solutions in the bigravity
formulation of such theories. In general, the solutions admit both a Lorentz
invariant and a Lorentz breaking asymptotically flat behaviour and also fall in
two branches. In the first branch, all solutions can be found analitycally and
are Schwarzschild-like, with no modification as is found for other classes of
theories. In the second branch, exact solutions are hard to find, and relying
on perturbation theory, Yukawa-like modifications of the static potential are
found. The general structure of the solutions suggests that the bigravity
formulation of massive gravity is crucial and more than a tool. | | Source: | arXiv, 1110.4967 | | Services: | Forum | Review | PDF | Favorites | |
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