Persistence of chirality in the Su-Schrieffer-Heeger model in the presence of on-site disorder
Persistence of chirality in the Su-Schrieffer-Heeger model in the presence of on-site disorder
We consider the effects of on-site and hopping disorder on zero modes in the Su-Schrieffer-Heeger model. In the absence of disorder a domain wall gives rise to two chiral fractionalized bound states, one at the edge and one bound to the domain wall. On-site disorder breaks the chiral symmetry, in …