scholarly journals Ground-state properties of the one-dimensional extended Hubbard model at half filling

2008 ◽  
Vol 69 (12) ◽  
pp. 3293-3296 ◽  
Author(s):  
S. Ejima ◽  
S. Nishimoto
Keyword(s):  
Hubbard Model ◽  
Ground State ◽  
Extended Hubbard Model ◽  
One Dimensional ◽  
Ground State Properties ◽  
Half Filling ◽  
The One

scholarly journals Exact Ground-State Properties and Phase Transitions within One-dimensional Hubbard Model in Magnetic Field

2000 ◽  
Vol 14 (29n31) ◽  
pp. 3771-3776
Author(s):  
C. Yang ◽  
A. N. Kocharian ◽  
Y. L. Chiang
Keyword(s):  
Magnetic Field ◽  
Hubbard Model ◽  
Ground State ◽  
Chemical Potential ◽  
Interaction Strength ◽  
Upper And Lower Bounds ◽  
One Dimensional ◽  
Ground State Properties ◽  
Half Filling ◽  
The One

The phase diagram, the Bethe-ansatz ground-state properties, including the chemical potential μ, the spin (magnetic) and charge susceptibilities, are calculated within the one-dimensional Hubbard model in entire range of interaction strength (-∞< U/t<+∞), magnetic field (h≥ 0) and all electron concentrations (0≤n≤1). The continuous and smooth variation of μ with n and h in the vicinity of n=1 points on the gapless character of charge excitations at U<0 and provides rigorous upper and lower bounds for μ. The spin (magnetic) susceptability χ at half-filling changes discontinuously as U→0 and is strongly enhanced by electron repulsion, comparing with that of the non-interactig case. The compressibility κ ch increases with n at U<0 and shows non-monotonous behavior with a dramatic increase at U>0. Variations of κ ch -1 in both repulsive and attractive cases qualitatively well reproduces corresponding behavior of charge stiffness.

scholarly journals Ground-state properties of the one-dimensional attractive Hubbard model with confinement: A comparative study

2010 ◽  
Vol 82 (1) ◽  
Author(s):  
Ji-Hong Hu ◽  
Jing-Jing Wang ◽  
Gao Xianlong ◽  
Masahiko Okumura ◽  
Ryo Igarashi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Hubbard Model ◽  
Ground State ◽  
One Dimensional ◽  
Ground State Properties ◽  
Attractive Hubbard Model ◽  
The One

scholarly journals Ground-state properties of the one-dimensional unconstrained pseudo-anyon Hubbard model

2017 ◽  
Vol 95 (5) ◽  
Author(s):  
Wanzhou Zhang ◽  
Sebastian Greschner ◽  
Ernv Fan ◽  
Tony C. Scott ◽  
Yunbo Zhang
Keyword(s):  
Hubbard Model ◽  
Ground State ◽  
One Dimensional ◽  
Ground State Properties ◽  
The One

scholarly journals Ground-state properties of the one-dimensional Hubbard model with pairing potential

2020 ◽  
pp. 412665
Author(s):  
Myung-Hoon Chung ◽  
Edmond Orignac ◽  
Didier Poilblanc ◽  
Sylvain Capponi
Keyword(s):  
Hubbard Model ◽  
Ground State ◽  
One Dimensional ◽  
Ground State Properties ◽  
The One ◽  
Pairing Potential
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