English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Gate-tunable semiconductor-superconductor nanowires with superconductingleads form exotic Josephson junctions that are a highly desirable platform fortwo types of qubits: those with topological superconductivity (Majorana qubits)and those based on tunable anharmonicity (gatemon qubits). Controlling theirbehavior, however, requires understanding their electrostatic environment andelectronic structure. Here we study gated InAs nanowires with epitaxialaluminum shells. By measuring current-phase relations (CPR) and comparing themwith analytical and numerical calculations, we show that we can tune the numberof modes, determine the transparency of each mode, and tune into regimes inwhich electron-electron interactions are apparent, indicating the presence of aquantum dot. To take into account electrostatic and geometrical effects, weperform microscopic self-consistent Schrodinger-Poisson numerical simulations,revealing the energy spectrum of Andreev states in the junction as well astheir spatial distribution. Our work systematically demonstrates the effect ofdevice geometry, gate voltage and phase bias on mode behavior, providing newinsights into ongoing experimental efforts and predictive device design.

Current-phase relations of InAs nanowire Josephson junctions: from interacting to multi-mode regimes