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EnglishSemiclassical wave packets for electrons in crystals, subject to an external electromagnetic field, satisfy Hamiltonian equations. In (2+1)-dimensions and in the limit of uniform fields, the symmetry group results in a two-folded Galilei algebra, incorporating an “exotic” central charge. It has the physical meaning of the Berry-phase curvature. In the Hamiltonian scheme, we discuss possible deformations of that algebra and the physical meaning.
| Titolo: | Hamiltonian theory of anyons in crystals |
| Autori: | |
| Data di pubblicazione: | 2006 |
| Rivista: | |
| Abstract: | Semiclassical wave packets for electrons in crystals, subject to an external electromagnetic field, satisfy Hamiltonian equations. In (2+1)-dimensions and in the limit of uniform fields, the symmetry group results in a two-folded Galilei algebra, incorporating an “exotic” central charge. It has the physical meaning of the Berry-phase curvature. In the Hamiltonian scheme, we discuss possible deformations of that algebra and the physical meaning. |
| Handle: | http://hdl.handle.net/11587/104814 |
| Appare nelle tipologie: | Articolo pubblicato su Rivista |
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