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Abstract: We find spherically symmetric solutions in the modified Ho\v{r}ava-Lifshitzgravity proposed recently by Blas, Pujolas and Sibiryakov. The non-linearequations of the two derivative action turn out to be similar to those stemmingfrom the four-derivative action explored recently. We analyze the solutions andderive constraints on the relevant new coupling constant. We also analyze thecase where the cosmological constant is non-zero.We derive the large distance expansion of solutions and show that the powerof the standard Newton-s law is modified in the presence of a cosmologicalconstant.



Autor: Elias Kiritsis U of Crete

Fuente: https://arxiv.org/







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