2012/07/12 by Maria-Theresa Rieder, M. -T. Rieder, G. Kells +7 · 29 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Coherence length #Condensed matter physics #Multi-mode optical fiber #Optics #Physics #Physics of Superconductivity and Magnetism #Superconductivity #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.86.125423
published in Physical Review B 86(12) (American Physical Society) · 10 pages, 7 figures
arxiv created 2012/07/12 · openalex publication_date 2012/09/13 · arxiv updated 2013/08/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Multimode spinless p-wave superconducting wires with a width W much smaller than the superconducting coherence length \ensuremathξ are known to have multiple low-energy subgap states localized near the wire's ends. Here we compare the typical energies of such endstates for various terminations of the wire: A superconducting wire coupled to a normal-metal stub, a weakly disordered superconductor wire and a wire with smooth confinement. Depending on the termination, we find that the energies of the subgap states can be higher or lower than for the case of a rectangular wire with hard-wall boundaries.