With the use of the Lipkin model as an illustration, the time-dependent Hartree-Fock method is investigated from the viewpoint of the functional approach. The main concerning is put on the procedure of quantization. We discuss how the quantization related the time-dependent Hartree-Fock field to the exact solution.

Progress of Theoretical PhysicsNov 1, 19781 citation

OCCUPATION RENORMALIZED HARTREE-FOCK APPROXIMATION IN LIPKIN MODEL

Pan Zhang

The occupation renormalized Hartree-Fock single particle potential is extended to include the 'particle' state occupation. The exact solution, the solution of the occupation renormalized Hartree-Fock approximation and that of the Hartree-Fock approximation are calculated in Lipkin Model. It turns out that the RHF solution is more close to the exact one than the HF solution. The effect of occupation probability depends on the strength of the interaction of the two body term.

Chinese Physics CJan 1, 19840 citations