1302.2612 (I. Adagideli et al.)

Inducing topological order in dirty wires: Majorana fermions from
scattering    [PDF]

I. Adagideli, M. Wimmer, A. Teker

We focus on inducing topological state from regular, or irregular scattering in (i) p-wave superconducting and (ii) proximity coupled Rashba wires. We find that while disorder is detrimental to topological state in p-wave wires, we find that it can {\it induce} topological state in Rashba wires contrary to common expectations. We find that the total phase space area of the topological state is conserved for long disordered wires, and can be even increased in an appropriately engineered superlattice potential.

View original: http://arxiv.org/abs/1302.2612