Topological superconducting phases in disordered quantum wires with strong spin-orbit coupling

Autor:	Brouwer, Piet W., Duckheim, Mathias, Romito, Alessandro, von Oppen, Felix
Rok vydání:	2011
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Superconductivity
Zdroj:	Phys. Rev. B 84, 144526 (2011)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.84.144526
Popis:	Zeeman fields can drive semiconductor quantum wires with strong spin-orbit coupling and in proximity to s-wave superconductors into a topological phase which supports end Majorana fermions and offers an attractive platform for realizing topological quantum information processing. Here, we investigate how potential disorder affects the topological phase by a combination of analytical and numerical approaches. Most prominently, we find that the robustness of the topological phase against disorder depends sensitively and non-monotonously on the Zeeman field applied to the wire. Comment: 6 pages, 3 figures; published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1103.2746 Zobrazit plný text záznamu View this record from Arxiv