Mott transition in the one-dimensional SU(n) Hubbard model -: art. no. 205108

被引：17

作者：

Szirmai, E ^{[1
]}

Sólyom, J ^{[1
]}

机构：

[1] Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.71.205108

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The one-dimensional SU(n) Hubbard model is investigated using an analytical, perturbative renormalization-group treatment in the fermionic formulation of the model for n > 2. It is found that in the half-filled case, the umklapp processes couple the spin and charge degrees of freedom and generate a finite gap for arbitrary finite positive U. This behavior is thus different from that at 1/n filling, where there is one particle per site, in which case the dynamics of the two degrees of freedom can be separated and a critical U-c is needed for the Mott transition.

引用

页数：7

共 50 条

[21] Momentum distribution and tunneling density of states of one-dimensional Fermionic SU(N) Hubbard model
Liang, Shuang
Zhang, Deping
Chen, Wei
JOURNAL OF PHYSICS-CONDENSED MATTER, 2019, 31 (18)
[22] Effect of Hund coupling in the one-dimensional SU(4) Hubbard model
Lee, HC
Azaria, P
Boulat, E
PHYSICAL REVIEW B, 2004, 69 (15) : 155109 - 1
[23] Evidence for a Mott-Hubbard transition in a two-dimensional 3He fluid monolayer -: art. no. 115301
Casey, A
Patel, H
Nyéki, J
Cowan, BP
Saunders, J
PHYSICAL REVIEW LETTERS, 2003, 90 (11) : 1 - 115301
[24] Conductance of one-dimensional quantum wires -: art. no. 035313
Imura, KI
Pham, KV
Lederer, P
Piéchon, F
PHYSICAL REVIEW B, 2002, 66 (03):
[25] Breakdown of the Luttinger sum rule at the Mott-Hubbard transition in the one-dimensional t1-t2 Hubbard model
Gros, C
Hamacher, K
Wenzel, W
EUROPHYSICS LETTERS, 2005, 69 (04): : 616 - 622
[26] Filling-driven Mott transition in SU(N) Hubbard models
Lee, Seung-Sup B.
von Delft, Jan
Weichselbaum, Andreas
PHYSICAL REVIEW B, 2018, 97 (16)
[27] Correlation exponent Kρ of the one-dimensional Kondo lattice model -: art. no. 075110
Xavier, JC
Miranda, E
PHYSICAL REVIEW B, 2004, 70 (07) : 075110 - 1
[28] CONDENSATION TRANSITION IN THE ONE-DIMENSIONAL EXTENDED HUBBARD-MODEL
LIN, HQ
HIRSCH, JE
PHYSICAL REVIEW B, 1986, 33 (12): : 8155 - 8163
[29] Dynamical transition in interaction quenches of the one-dimensional Hubbard model
Hamerla, Simone A.
Uhrig, Goetz S.
PHYSICAL REVIEW B, 2013, 87 (06):
[30] Photoinduced Hubbard band mixing of a one-dimensional Mott insulator
Lee, J. D.
Inoue, J.
JOURNAL OF LUMINESCENCE, 2008, 128 (5-6) : 1072 - 1074

← 1 2 3 4 5 →