Momentum-distribution critical exponents for the one-dimensional large-U Hubbard model in the thermodynamic limit
文献类型：期刊论文
| 作者 | Qin, SJ ; Yu, L; Qin, SJ , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY.
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 1996 |
| 卷号 | 54期号:3页码:1447-1450 |
| 关键词 | Quantum Fluids Field Chain |
| ISSN号 | 1098-0121 |
| 英文摘要 | The critical exponents of the momentum distribution near k(F), 3k(F), and 5k(F) are studied numerically for the one-dimensional U-->infinity Hubbard model, using finite-size systems and extrapolating them to the thermodynamic limit. Results at k(F) agree with earlier calculations, while at 3k(F), exponents less than 1 are obtained for finite-size systems with extrapolation to 1 (regular behavior) in the thermodynamic limit, in contrast to the earlier analytic prediction of 9/8. The distribution is regular at 5k(F) even for finite systems. The singularity near 3k(F) is interpreted as due to low-energy excitations near 3k(F) in finite systems. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12608]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Qin, SJ , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY. |
| 推荐引用方式 GB/T 7714 | Qin, SJ,Yu, L,Qin, SJ , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY.. Momentum-distribution critical exponents for the one-dimensional large-U Hubbard model in the thermodynamic limit[J]. PHYSICAL REVIEW B,1996,54(3):1447-1450. |
| APA | Qin, SJ,Yu, L,&Qin, SJ , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY..(1996).Momentum-distribution critical exponents for the one-dimensional large-U Hubbard model in the thermodynamic limit.PHYSICAL REVIEW B,54(3),1447-1450. |
| MLA | Qin, SJ,et al."Momentum-distribution critical exponents for the one-dimensional large-U Hubbard model in the thermodynamic limit".PHYSICAL REVIEW B 54.3(1996):1447-1450. |
入库方式： OAI收割
来源：理论物理研究所
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