Abstract
The one-dimensional spin- model is studied within the bosonization approach. Around the two limits where a field theoretical analysis can be derived, we discuss the phases as well as the different phase transitions that occur in the model. In particular, it is found that the chiral critical spin nematic phase, discovered by Nersesyan et al. [Phys. Rev. Lett. 81, 910 (1998)] for exists in the general spin- case. The nature of the effective-field theory that describes the transition between this chiral critical phase and a chiral gapped phase is also determined.
- Received 25 July 2000
DOI:https://doi.org/10.1103/PhysRevB.63.174426
©2001 American Physical Society