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Quantum Simulation
Discrete symmetry in graphene: the Dirac equation and beyond
arXiv
Authors: Emerson Sadurní, Eladio Rivera-Mociños, Alfonso Rosado
Year
2014
Paper ID
46310
Status
Preprint
Abstract Read
~2 min
Abstract Words
75
Citations
N/A
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.
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- 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...
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