Spin-orbital entanglement near quantum phase transitions
| dc.creator | Oles, Andrzej M. | |
| dc.creator | Horsch, Peter | |
| dc.creator | Khaliullin, Giniyat | |
| dc.date | 2007-06-17 | |
| dc.date.accessioned | 2026-07-07T08:10:43Z | |
| dc.date.available | 2026-07-07T08:10:43Z | |
| dc.description | Spin-orbital entanglement in the ground state of a one-dimensional SU(2)$\otimes$SU(2) spin-orbital model is analyzed using exact diagonalization of finite chains. For $S=1/2$ spins and $T=1/2$ pseudospins one finds that the quantum entanglement is similar at the SU(4) symmetry point and in the spin-orbital valence bond state. We also show that quantum transitions in spin-orbital models turn out to be continuous under certain circumstances, in constrast to the discontinuous transitions in spin models with SU(2) symmetry. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/0706.2477 | |
| dc.identifier | http://arxiv.org/abs/0706.2477 | |
| dc.identifier | Phys. Status Solidi B 244, 2378 (2007) | |
| dc.identifier | doi:10.1002/pssb.200674619 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/131899 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Spin-orbital entanglement near quantum phase transitions | |
| dc.type | text |