2 papers
cond-mat.str-el1999
Theory Of The One Dimensional SU(4) Spin-Orbital Model
P. Azaria, A. O. Gogolin, P. Lecheminant +1
The one-dimensional spin-orbital model is studied by means of Abelian bosonization. We derive the low-energy effective theory which enables us to study small deviations from the SU…
cond-mat.str-el1998
Restoration of Symmetry by Interactions and Nonreliability of the Perturbative Renormalization Group Approach
P. Azaria, P. Lecheminant, A. M. Tsvelik
We discuss examples of (1+1)-dimensional models where the perturbative renormalization group (RG) indicates a tendency to restore the symmetry in the strong coupling limit. We show…