2 papers
math-ph2026
Theoretical analysis of the effect of the kinetic energy operator on double heterostructure spectra
R. Valencia-Torres, J. GarcÃa-Ravelo, J. García-Ravelo +4
We report an analytical and numerical study of the effect of kinetic energy operator (KEO) ambiguity on the energy spectra of double heterostructures when the mass of the charge ca…
cond-mat.mes-hall2026
Super-Klein tunneling in 2D Lorentzian-type barriers in graphene
Alonso Contreras-Astorga, Francisco Correa, Luis Inzunza +2
We introduce a two-dimensional model of spin-1/2 Dirac fermions in graphene subjected to a highly tunable electric field, which exhibits super-Klein tunneling. The electric field c…