Singular Density of States of Disordered Dirac Fermions in the Chiral Models
| dc.creator | Ryu, Shinsei | |
| dc.creator | Hatsugai, Yasuhiro | |
| dc.date | 2001-07-25 | |
| dc.date.accessioned | 2026-07-07T10:31:53Z | |
| dc.date.available | 2026-07-07T10:31:53Z | |
| dc.description | The Dirac fermion in the random chiral models is studied which includes the random gauge field model and the random hopping model. We focus on a connection between continuum and lattice models to give a clear perspective for the random chiral models. Two distinct structures of density of states (DoS) around zero energy, one is a power-law dependence on energy in the intermediate energy range and the other is a diverging one at zero energy, are revealed by an extensive numerical study for large systems up to $250\times 250$. For the random hopping model, our finding of the diverging DoS within very narrow energy range reconciles previous inconsistencies between the lattice and the continuum models. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0107516 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0107516 | |
| dc.identifier | Phys.Rev.B65:033301,2002 | |
| dc.identifier | doi:10.1103/PhysRevB.65.033301 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178570 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Singular Density of States of Disordered Dirac Fermions in the Chiral Models | |
| dc.type | text |