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Spherically symmetric solutions in modified Horava-Lifshitz gravity

E. Kiritsis 1
APC (UMR_7164) - AstroParticule et Cosmologie, Institut für theoretische Physik
Abstract : We find spherically symmetric solutions in the modified Hořava-Lifshitz gravity proposed recently by Blas, Pujolas and Sibiryakov. The non-linear equations of the two derivative action turn out to be similar to those stemming from the four-derivative action explored recently. We analyze the solutions and derive constraints on the relevant new coupling constant. We also analyze the case where the cosmological constant is non-zero. We derive the large distance expansion of solutions and show that the power of the standard Newton's law is modified in the presence of a cosmological constant.
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Submitted on : Thursday, July 5, 2012 - 9:36:33 PM
Last modification on : Thursday, November 18, 2021 - 3:58:05 AM

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E. Kiritsis. Spherically symmetric solutions in modified Horava-Lifshitz gravity. Physical Review D, American Physical Society, 2010, 81, pp.044009. ⟨10.1103/PhysRevD.81.044009⟩. ⟨in2p3-00714897⟩



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