Order amidst disorder for two-dimensional nanoribbons with various boundary conditions

Abstract

- We show quantum systems with disordered Hamiltonians may exhibit order in com-monly measured quantities. This counter-intuitive situation is demonstrated using a conventional tight binding model for two-dimensional nanoribbons with various boundary conditions.

The analysis uses the traditional non-equilibrium Green's function (NEGF) methodology for electron transport. We study quantum dragon nanodevices that exhibit order amidst disorder.

Each dis-ordered Hamiltonian nanodevice shows order in both the bond currents and the local density of states (LDOS) of the propagating electrons.

Keywords

• Order
• amidst
• disorder
• for
• two-dimensional
• nanoribbons
• with
• various
• boundary
• conditions