On the infrared limit of Horava's gravity with the global Hamiltonian constraint

Abstract

We show that Horava's theory of gravitation with the global Hamiltonian constraint does not reproduce General Relativity in the infrared domain. There is one extra propagating degree of freedom, besides those two associated with the massless graviton, which does not decouple.

Comments: 7 pages, typos corrected, to be published in PRD