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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 | |
Source Publication | PHYSICAL REVIEW B |
Keyword | Quantum Fluids Field Chain |
Abstract | 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. |
1996 | |
ISSN | 1098-0121 |
Volume | 54Issue:3Pages:1447-1450 |
Subject Area | Physics |
Indexed By | SCI |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/12608 |
Collection | 理论物理所科研产出_SCI论文 |
Corresponding Author | Qin, SJ , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY. |
Recommended Citation 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. |
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