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arXiv · 1207.2993

Endstates in multichannel spinless p-wave superconducting wires

M. -T. Rieder·G. Kells·M. Duckheim·D. Meidan·P. W. Brouwer
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Abstract

Multimode spinless p-wave superconducting wires with a width W much smaller than the superconducting coherence length ξare 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.

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M. -T. Rieder, G. Kells, M. Duckheim, D. Meidan, P. W. Brouwer. 2012-07-12. Endstates in multichannel spinless p-wave superconducting wires. https://doi.org/10.1103/physrevb.86.125423

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