Print Email Facebook Twitter Abundance of Weyl points in semiclassical multiterminal superconducting nanostructures Title Abundance of Weyl points in semiclassical multiterminal superconducting nanostructures Author Barakov, H.S. (TU Delft QN/Nazarov Group; Kavli institute of nanoscience Delft) Nazarov, Y.V. (TU Delft QN/Nazarov Group; Kavli institute of nanoscience Delft) Date 2023 Abstract We show that the quasicontinuous gapless spectrum of Andreev bound states in multiterminal semi-classical superconducting nanostructures exhibits a large number of topological singularities. We concentrate on Weyl points in a four-terminal nanostructure and compute their density and correlations in three-dimensional parameter space for a universal random matrix theory model as well as for the concrete nanostructures described by the quantum circuit theory. We mention the opportunities for experimental observation of the effect in a quasicontinuous spectrum. To reference this document use: http://resolver.tudelft.nl/uuid:b1ec0ec5-db0f-4887-a2e2-86a7e0629883 DOI https://doi.org/10.1103/PhysRevB.107.014507 ISSN 2469-9950 Source Physical Review B, 107 (1) Part of collection Institutional Repository Document type journal article Rights © 2023 H.S. Barakov, Y.V. Nazarov Files PDF PhysRevB.107.014507.pdf 626.79 KB Close viewer /islandora/object/uuid:b1ec0ec5-db0f-4887-a2e2-86a7e0629883/datastream/OBJ/view