OPTIMIZATION OF INITIAL STATE-VECTOR IN THE GROUND-STATE ALGORITHM OF LATTICE FERMION SIMULATIONS

被引：28

作者：

FURUKAWA, N

IMADA, M

机构：

[1] Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo 106

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 11期

关键词：

D O I：

10.1143/JPSJ.60.3669

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum simulation algorithm for the lattice fermions in the ground state is examined. Initial trial state is optimized using the unrestricted Hartree Fock solution. Convergence to the ground state average in the projection process is compared among several choices of the trial state. The optimized trial state provides a faster convergence for physical quantities as well as a better minus sign ratio in the sampling.

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页码：3669 / 3674

页数：6

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