Electron spectral density of the half-filled Hubbard model in the atomic limit at finite temperature

• Authors: Sergei Ovchinnikov , Elena Shneyder
• Languages of publication: EN

Abstracts

EN

We have calculated the spectral function and density of states of halffilled two-dimensional Hubbard model in the Hubbard-I approximation assuming an antiferromagnetic long range order at low temperature and compared results to the QMC data. It occurs that calculated functions are in a qualitative agreement with the QMC one. We have also shown that Neel ordered state dispersion has the similar form to the spin density wave one.

Keywords

EN

Hubbard model; half-filling; spectral function; density of states; redistribution of spectral weight; 71.10.Fd

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2003
• Volume: 1
• Issue: 3
• Pages: 421-431

Dates

published

1 - 9 - 2003

online

1 - 9 - 2003

Contributors

author

Sergei Ovchinnikov

• L. V. Kirensky Institute of Physics, Siberian Division, Russian Academy of Science, Akademgorodok, 660036, Krasnoyarsk, Russia

author

Elena Shneyder

• L. V. Kirensky Institute of Physics, Siberian Division, Russian Academy of Science, Akademgorodok, 660036, Krasnoyarsk, Russia

References

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Identifiers

DOI

10.2478/BF02475853