RVB liquid phase of a quantum dimer model with competing kinetic terms

Starting from a spin-orbital model adapted to the case of LiNiO$_2$, we derived an effective quantum dimer model including 6-dimer loops. We argue that the relevant terms of this model are of kinetic type. Using numerical techniques like exact diagonalizations and Green's function Monte-Carlo we show that a competition between two kinetic terms can lead to a resonating valence bond state for a finite range of the parameters.