Spectral functions of the one-dimensional Hubbard model in the U{r_arrow}+{infinity} limit: How to use the factorized wave function
- Max-Planck-Institut fuer Physik Komplexer Systeme, Bayreuther Strasse 40, 01187 Dresden (Germany)
- Laboratoire de Physique Quantique, Universite Paul Sabatier, 31062 Toulouse (France)
- Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152 (Japan)
We give the details of the calculation of the spectral functions of the one-dimensional Hubbard model using the spin-charge factorized wave function for several versions of the U{r_arrow}+{infinity} limit. The spectral functions are expressed as a convolution of charge and spin dynamical correlation functions. A procedure to evaluate these correlation functions very accurately for large systems is developed, and analytical results are presented for the low-energy region. These results are fully consistent with the conformal field theory. We also propose a direct method of extracting the exponents from the matrix elements in more general cases. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 530200
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 55, Issue 23; Other Information: PBD: Jun 1997
- Country of Publication:
- United States
- Language:
- English
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