Discrete symmetry in graphene: the Dirac equation and beyond
Other Condensed Matter
2015-03-25 v1 High Energy Physics - Theory
Quantum Physics
Abstract
In this pedagogical paper we review the discrete symmetries of the Dirac equation using elementary tools, but in a comparative order: the usual 3 + 1 dimensional case and the 2 + 1 dimensional case. Motivated by new applications of the 2d Dirac equation in condensed matter, we further analyze the discrete symmetries of a full tight-binding model in hexagonal lattices without conical approximations. We touch upon an effective CPT symmetry breaking that occurs when deformations and second-neighbor corrections are considered.
Keywords
Cite
@article{arxiv.1411.6319,
title = {Discrete symmetry in graphene: the Dirac equation and beyond},
author = {Emerson Sadurní and Eladio Rivera-Mociños and Alfonso Rosado},
journal= {arXiv preprint arXiv:1411.6319},
year = {2015}
}
Comments
12 pages 13 figures