Print Email Facebook Twitter Weyl disks Title Weyl disks: Theoretical prediction Author Erdmanis, J. (TU Delft QN/Nazarov Group; Kavli institute of nanoscience Delft) Lukacs, A.L. (TU Delft QN/Nazarov Group; Kavli institute of nanoscience Delft) Nazarov, Y.V. (TU Delft QN/Nazarov Group; Kavli institute of nanoscience Delft) Date 2018 Abstract A variety of quantum systems exhibit Weyl points in their spectra where two bands cross in a point of three-dimensional parameter space with conical dispersion in the vicinity of the point. We consider theoretically the soft constraint regime where the parameters are dynamical quantum variables. We have shown that in general the soft constraints, in the quasiclassical limit, result in Weyl disks where two states are (almost) degenerate in a finite two-dimensional region of the three-dimensional parameter space. We provide concrete calculations for two setups: Weyl point in a four-terminal superconducting structure and a Weyl exciton, i.e., a bound state of Weyl electron and a massive hole. To reference this document use: http://resolver.tudelft.nl/uuid:487fe4cf-7431-425f-b8da-78225b3a3124 DOI https://doi.org/10.1103/PhysRevB.98.241105 ISSN 2469-9950 Source Physical Review B, 98 (24) Part of collection Institutional Repository Document type journal article Rights © 2018 J. Erdmanis, A.L. Lukacs, Y.V. Nazarov Files PDF PhysRevB.98.241105.pdf 880.76 KB Close viewer /islandora/object/uuid:487fe4cf-7431-425f-b8da-78225b3a3124/datastream/OBJ/view