Finite-size corrections for the low lying states of a half-filled Hubbard chain
- 11 May 1987
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 20 (7) , L443-L449
- https://doi.org/10.1088/0305-4470/20/7/005
Abstract
The finite-size corrections to the ground state and the energy of the low magnetisation (S<O). It is found that the contribution of the charge degrees of freedom is negligible, while the contribution of the spin degrees is the same as that in the one-dimensional isotropic Heisenberg model. The analytical results are compared to numerical ones obtained for the chain lengths up to N=512.Keywords
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