Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2003-02-03
Physics
Condensed Matter
Strongly Correlated Electrons
24 pages, 9 figures. Accepted for publication in Physical Review B
Scientific paper
10.1103/PhysRevB.68.085104
This paper is part of a broader study whose main goal is the study of the finite-energy spectral properties of the non-perturbative one-dimensional (1D) Hubbard model and the evaluation of finite-energy correlation-function expressions. Here we study the deviations from the ground state values of double occupancy which result from creation or annihilation of holons, spinons, and pseudoparticles. The band-momentum dependence of the obtained double-occupancy spectra provides important information on the degree of localization/delocalization of the real-space lattice electron site distribution configurations associated with the pseudoparticles. We also study the band-momentum, on-site electronic repulsion, and electronic density dependence of the pseudoparticle energy bands. The shape of these bands plays an important role in the finite-energy spectral properties of the model. Such a shape defines the form of the lines in the momentum-energy/frequency plane where the peaks and edges of the one-electron and two-electron spectral weight of physical operators are located. Our findings are useful for the study of the one-electron and two-electron spectral weight distribution of physical operators.
Carmelo Jose. M. P.
Sacramento Pedro D.
No associations
LandOfFree
Finite-Energy Landau Liquid Theory for the 1D Hubbard Model: Pseudoparticle Energy Bands and Degree of Localization/Delocalization does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Finite-Energy Landau Liquid Theory for the 1D Hubbard Model: Pseudoparticle Energy Bands and Degree of Localization/Delocalization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finite-Energy Landau Liquid Theory for the 1D Hubbard Model: Pseudoparticle Energy Bands and Degree of Localization/Delocalization will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-350154