Finite-size corrections in theXXZmodel and the Hubbard model with boundary fields
- 1 January 1996
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 29 (2), 225-245
- https://doi.org/10.1088/0305-4470/29/2/004
Abstract
The XXZ model and the Hubbard model with boundary fields are discussed. Using the exact solutions of the present models, the finite-size corrections of the ground-state energy and the low-lying excitation energies are calculated. The partition functions are also evaluated in the scaling limit. Through this calculation, the conformal weights of the primary fields in the present model are obtained.Keywords
This publication has 19 references indexed in Scilit:
- The supersymmetric t−J model with quantum group invarianceNuclear Physics B, 1993
- Luttinger liquid properties of highly correlated electron systems in one dimensionJournal of Physics: Condensed Matter, 1991
- Bethe ansatz solution of the Fateev-Zamolodchikov quantum spin chain with boundary termsPhysics Letters A, 1990
- Finite-size effects in a non-half-filled Hubbard chainJournal of Physics A: General Physics, 1989
- Non-analytic finite-size corrections in the one-dimensional Bose gas and Heisenberg chainJournal of Physics A: General Physics, 1989
- Boundary conditions for integrable quantum systemsJournal of Physics A: General Physics, 1988
- Universal term in the free energy at a critical point and the conformal anomalyPhysical Review Letters, 1986
- Conformal invariance, the central charge, and universal finite-size amplitudes at criticalityPhysical Review Letters, 1986
- Operator content of two-dimensional conformally invariant theoriesNuclear Physics B, 1986
- Infinite conformal symmetry in two-dimensional quantum field theoryNuclear Physics B, 1984