Reflectionless modes as a source of Weyl nodes in multiterminal Josephson junctions

Kurzanzeige
dc.contributor.authorOhnmacht, David
dc.contributor.authorWilhelm, Valentin
dc.contributor.authorBelzig, Wolfgang
dc.date.accessioned2025-07-16T11:30:58Z
dc.date.available2025-07-16T11:30:58Z
dc.date.issued2025-03-13
dc.description.abstractMultiterminal Josephson junctions are a promising platform to study non-trivial topology in engineered quantum systems. Yet, experimentally meaningful insight into what exactly makes these systems topologically non-trivial remains elusive. In this work, we show that zero energy reflectionless scattering modes (RSMs) of the normal scattering matrix result in topological phase boundaries. By analyzing two different setups, we explain the origin of each topological phase boundary and furthermore provide generalizable insight into these systems. The considerations here can be of help for experimentalists as it connects the properties of the normal scattering region to the Andreev bound state spectrum of superconducting junctions in a multiterminal setup.
dc.description.versionsubmitted
dc.identifier.arxiv2503.10874
dc.identifier.doi10.48550/arXiv.2503.10874
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/73987
dc.language.isoeng
dc.subjectMesoscale and Nanoscale Physics, Weyl node, Josephson junction, quantum system, superconductivity, RSMs
dc.subject.ddc530
dc.titleReflectionless modes as a source of Weyl nodes in multiterminal Josephson junctionseng
dc.typePREPRINT
dspace.entity.typePublication
kops.citation.bibtex
@unpublished{Ohnmacht2025-03-13Refle-73987,
  title={Reflectionless modes as a source of Weyl nodes in multiterminal Josephson junctions},
  year={2025},
  doi={10.48550/arXiv.2503.10874},
  author={Ohnmacht, David and Wilhelm, Valentin and Belzig, Wolfgang}
}
kops.citation.iso690OHNMACHT, David, Valentin WILHELM, Wolfgang BELZIG, 2025. Reflectionless modes as a source of Weyl nodes in multiterminal Josephson junctionsdeu
kops.citation.iso690OHNMACHT, David, Valentin WILHELM, Wolfgang BELZIG, 2025. Reflectionless modes as a source of Weyl nodes in multiterminal Josephson junctionseng
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