Effective field theory for S=1 quantum nematic
| dc.creator | Ivanov, Boris A. | |
| dc.creator | Kolezhuk, Alexei K. | |
| dc.date | 2002-05-10 | |
| dc.date | 2003-06-20 | |
| dc.date.accessioned | 2026-07-07T09:33:48Z | |
| dc.date.available | 2026-07-07T09:33:48Z | |
| dc.description | For S=1 system with general isotropic nearest-neighbor exchange, we derive the low-energy description of the spin nematic phase in terms of the RP^{2} nonlinear sigma-model. In one dimension, quantum fluctuations destroy long-range nematic (quadrupolar) ordering, leading to the formation of a gapped spin liquid state being an analog of the Haldane phase for a spin nematic. Nematic analog of the Belavin-Polyakov instanton with π_{2} topological charge 1/2 is constructed. In two dimensions the long-range order is destroyed by thermal fluctuations and at finite temperature the system is in a renormalized classical regime. Behavior in external magnetic field is discussed. | |
| dc.description | final version to appear in PRB | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0205207 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0205207 | |
| dc.identifier | Phys. Rev. B 68, 052401 (2003) | |
| dc.identifier | doi:10.1103/PhysRevB.68.052401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/159266 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Effective field theory for S=1 quantum nematic | |
| dc.type | text |