抄録
The minus sign problem, as a problem of the non-positive-definite measure of the path integrals, is examined in the Monte Carlo simulation of the Hubbard model. A new correction method in terms of the ratio of two measured quantities is proposed to calculate physical properties. The momentum distribution and the spin correlation as well as the energy in the ground state are tested against the exactly diagonalized results. The results show that this ratio correction method is a promising prescription to reduce the minus sign problem.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 810-824 |
| ページ数 | 15 |
| ジャーナル | journal of the physical society of japan |
| 巻 | 60 |
| 号 | 3 |
| DOI | |
| 出版ステータス | Published - 1991 3 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学（全般）