𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Hole spectrum in the two-dimensional Hubbard model

✍ Scribed by Carlos E. Carneiro; Mario J. De Oliveira; Silvio R.A. Salinas; Guennady V. Uimin

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
619 KB
Volume
166
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Phase diagram of two-dimensional electro
Phase diagram of two-dimensional electron–hole Hubbard model
✍ Kenichi Asano; Tetsuo Ogawa πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 133 KB

We investigated the ground state of the electron-hole Hubbard model by the slave-boson mean field approximation, taking into account the spin degrees of freedom of electrons and holes. We find three phases: electron-hole plasma, exciton-gas, and biexciton-gas phases.

Properties of doped holes in the antifer
Properties of doped holes in the antiferromagnetic state of the two-dimensional Hubbard model
✍ G. Vignale; M.R. Hedayati πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 128 KB

We calculate the self-energy of a single hole in the half-filled antlferromaguetic two-dimensional Hubbard model. The minimum energy occurs at k = (7r/2, 7r/2) and is 37% lower than in Hartree-Fock. The hole lifetime tends to infinity for low-lying states, showing that quasiholes are well-defined ex

Mott Transition in the Two-Dimensional H
Mott Transition in the Two-Dimensional Hubbard Model
✍ A. PΓ©rez-Navarro; J. Costa-Quintana; F. LΓ³pez-Aguilar πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 344 KB πŸ‘ 2 views
Raman scattering in the two-dimensional
Raman scattering in the two-dimensional Hubbard model
✍ T. Tohyama; J. Inoue; S. Maekawa πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 216 KB

Magnon Raman spectra in the half-filled two-dimensional Hubbard model are calculated by using the exact diagonalization of a X/-8 x v'-8 lattice. Theoretical results of the peak positions and relative intensities of the B~, A~ and B 2 spectra agree with the observed ones. The frequency dependence of