Recent numerical results on the two dimensional Hubbard model
β Scribed by A. Parola; S. Sorella; S. Baroni; R. Car; M. Parrinello; E. Tosatti
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 141 KB
- Volume
- 162-164
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
We analyze the optical conductivity of the two-dimensional Hubbard model using the projection technique. The current self-energy and the static current susceptibility are evaluated perturbatively applying a novel real space summation technique. Results for the Drude weight and the incoherent spectru
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