Properties of One Oxygen Hole Motion in a Quantum Antiferromagnet11The project supported by the Fund of the National Center for R & D on Superconductivity of China and the Fund of the Chinese Academy of Sciences through the Grant No. LWTZ-1298.

Abstract

By making use of the equation of motion of the Green's function method and the self-consistent nondiagonal Fock approximation technique, we present a systematic analysis of the ground state properties of one-hole doping in the cupric oxides for the two-band model. The quant urn Bogoliubov-de Gennes formalism is developed to study the renormalized hole motion with the effects of local distortion of spin configurations. The ground state wave function, the ground state energy and the effective mass are derived. The calculations are carried out with the variational approach.