scholarly journals Analysis of time-resolved single-particle spectrum on the one-dimensional extended Hubbard model

2020 ◽  
Vol 101 (4) ◽  
Author(s):  
Can Shao ◽  
Takami Tohyama ◽  
Hong-Gang Luo ◽  
Hantao Lu
Keyword(s):  
Hubbard Model ◽  
Single Particle ◽  
Particle Spectrum ◽  
Extended Hubbard Model ◽  
Time Resolved ◽  
One Dimensional ◽  
Single Particle Spectrum ◽  
The One

The Phase Diagram of the One-Dimensional Extended Hubbard Model

1995 ◽  
pp. 315-326 ◽  
Author(s):  
H. Q. Lin ◽  
E. R. Gagliano ◽  
D. K. Campbell ◽  
E. H. Fradkin ◽  
J. E. Gubernatis
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Extended Hubbard Model ◽  
One Dimensional ◽  
The One

EXACT WAVEFUNCTION OF THE ONE-DIMENSIONAL DOUBLE-EXCHANGE MODEL WITH ONE ELECTRON

2012 ◽  
Vol 26 (30) ◽  
pp. 1250154 ◽  
Author(s):  
KYOHEI NAKANO ◽  
ROBERT EDER ◽  
YUKINORI OHTA
Keyword(s):  
Single Particle ◽  
Double Exchange ◽  
Exchange Interactions ◽  
Exchange Model ◽  
Particle Spectrum ◽  
Lower Edge ◽  
One Dimensional ◽  
Mobile Electron ◽  
Spin Excitations ◽  
The One

We study the one-dimensional double-exchange model with L localized spins and one mobile electron. We solve the Schrödinger equation analytically and obtain the energies and wavefunctions for all the eigenstates with spin S = (l-1)/2 exactly. As an application, we compute the single-particle Green's function. We show that, for vanishing exchange interactions between localized spins, the single-particle spectrum is entirely incoherent and the lowest band has an infinite band mass, i.e., the single electron is localized due to its interaction with the spin excitations. For nonvanishing exchange interactions between localized spins, the lower edge of the spectrum acquires a dispersion but the spectrum remains incoherent with no well-defined quasiparticle peak.

Condensation transition in the one-dimensional extended Hubbard model

1986 ◽  
Vol 33 (12) ◽  
pp. 8155-8163 ◽  
Author(s):  
H. Q. Lin ◽  
J. E. Hirsch
Keyword(s):  
Hubbard Model ◽  
Extended Hubbard Model ◽  
One Dimensional ◽  
The One
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