Interlayer charge dynamics of the uniform resonating-valence-bond state

The physical properties along the c axis of the uniform resonating-valence-bond state are studied. The physical electron, i.e., the composite particle of a spinon and a holon, hops between the layers incoherently. Conductivity, thermopower, thermal conductivity, and Hall constant are calculated and compared with the experiments in high-Tc cuprates. The renormalization group equation is obtained for the interlayer hopping tc which is found to be marginally relevant. The effects of the spin gap are also discussed