WAVE FUNCTION PROPERTIES

Brian P. Anderson

No author provided

An effective Hamiltonian equivalent to the t-J model is derived. We calculate analytically the ground-state energy and correlation functions for a modified Gutzwiller wave function using the technique developed by Metzner, Vollhardt, and Gebhard. We obtain results that are significantly better than those for the usual Gutzwiller wave function, and that are close to the exact results in some cases.