Choice of Single Particle Potentials in a Manv-Bodv calcu-lation-Hartree-Fock and Mass Operator Potential

Yao Yujie; Jing Xiaogong; Zhao Guoquan; Yang Shande; Wu Shishu

Chinese Physics C> 1990, Vol. 14> Issue(S1) : 83-91

Choice of Single Particle Potentials in a Manv-Bodv calcu-lation-Hartree-Fock and Mass Operator Potential

Department of Physics, Jilin University, Changchun

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Abstract：
A detailed comparison between the Hartree-Fock (HF) and the mass operator (M) potential is made by means of a solvable three-level model. It is found that in a quite large region of force parameters (FPR) the M potential gives a much better result than the HF potential and at certain points in FPR the HF result undergoes a sudden jump while the M result varies smoothly. The convergence behavior of the perturbation expansion of M has also been studied.

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Yao Yujie, Jing Xiaogong, Zhao Guoquan, Yang Shande and Wu Shishu. Choice of Single Particle Potentials in a Manv-Bodv calcu-lation-Hartree-Fock and Mass Operator Potential[J]. Chinese Physics C, 1990, 14(S1): 83-91.

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Received: 1988-11-22

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沈阳化工大学材料科学与工程学院沈阳 110142

Choice of Single Particle Potentials in a Manv-Bodv calcu-lation-Hartree-Fock and Mass Operator Potential

Department of Physics, Jilin University, Changchun

Received Date: 1988-11-22

Abstract: A detailed comparison between the Hartree-Fock (HF) and the mass operator (M) potential is made by means of a solvable three-level model. It is found that in a quite large region of force parameters (FPR) the M potential gives a much better result than the HF potential and at certain points in FPR the HF result undergoes a sudden jump while the M result varies smoothly. The convergence behavior of the perturbation expansion of M has also been studied.