Abstract
Density functional method is applied for strongly correlated systems. Based on the assumption that the systems are composed of electrons in singly-occupied orbitals and those in doubly-occupied orbitals, a set of self-consistent equations are obtained by standard variation procedure. The equations consist of two parts. One part is to solve the wave functions of the electrons in singly-occupied orbitals and the other is to solve the wave functions of the electrons in doubly-occupied orbitals. The physical meanings of the terms aspearing in the equations are discussed.
∗Supported by the Major State Basic Research Development Program of China (Grant No. G2000067101)
Notes
∗Supported by the Major State Basic Research Development Program of China (Grant No. G2000067101)