Physical realization and possible identification of topological excitations in quantum Heisenberg ferromagnet on lattice
| dc.creator | Chaudhury, Ranjan | |
| dc.creator | Paul, Samir K. | |
| dc.date | 2006-12-08 | |
| dc.date | 2007-03-07 | |
| dc.date.accessioned | 2026-07-07T07:50:21Z | |
| dc.date.available | 2026-07-07T07:50:21Z | |
| dc.description | Physical configurations corresponding to topological excitations present in the XY limit of a quantum spin 1/2 Heisenberg ferromagnet, are investigated on a two dimensional square lattice. Quantum vortices(anti-vortices) are constructed in terms of terms of coherent spin field components and the crucial role of the associated Wess-Zumino term is highlighted. It is shown that this term can identify a large class of vortices(anti-vortices). In particular the excitations with odd topological charge belonging to this class, are found to exhibit a self-similar pattern regarding the internal charge distribution. Our formalism is distinctly different from the coventional approach for the construction of quantum vortices(anti-vortices). | |
| dc.description | 15 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612211 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612211 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/125134 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Physical realization and possible identification of topological excitations in quantum Heisenberg ferromagnet on lattice | |
| dc.type | text |