Electrons-Holes on Noncommutative Plane and Hall Effect
| dc.creator | Jellal, Ahmed | |
| dc.date | 2002-07-30 | |
| dc.date.accessioned | 2026-07-07T04:13:55Z | |
| dc.date.available | 2026-07-07T04:13:55Z | |
| dc.description | By considering N_e-electrons and N_h-holes together in uniform external magnetic and electric fields, we end up with a total Hall conductivity σ_{H}^{tot}, which is depending to the difference between N_e and N_h and becomes null when N_e=N_h. Dealing with the same system but requiring that the coordinates of plane are noncommuting, we obtain a new Hall conductivity σ_{H}^{(tot,nc)}. In the limit N_e=N_h, we find that σ_{H}^{(tot,nc)} is only noncommutativity parameters θ_i-dependent, which means that theoretically it is possible to have Hall effect without B. Moreover, at the critical points θ_e=l^2 and θ_h=-l^2, we find that σ_{H}^{(tot,nc)} becomes two times the usual Hall conductivity for an noninteracting mixing system. | |
| dc.description | 13 pages | |
| dc.identifier | https://arxiv.org/abs/hep-th/0207269 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0207269 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/51438 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Electrons-Holes on Noncommutative Plane and Hall Effect | |
| dc.type | text |