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

For Josephson junctions based on s-wave superconductors, time-reversalsymmetry is known to allow for powerful relations between the normal-statejunction properties, the excitation spectrum, and the Josephson current. Herewe provide analogous relations for Josephson junctions involvingone-dimensional time-reversal-invariant topological superconductors supportingMajorana-Kramers pairs, considering both topological-topological ands-wave-topological junctions. Working in the regime where the junction is muchshorter than the superconducting coherence length, we obtain a number ofanalytical and numerical results that hold for arbitrary normal-stateconductance and the most general forms of spin-orbit coupling. The signaturesof topological superconductivity we find include the fractional ac Josephsoneffect, which arises in topological-topological junctions provided that theenergy relaxation is sufficiently slow. We also show, for both junction types,that robust signatures of topological superconductivity arise in the dcJosephson effect in the form of switches in the Josephson current due tozero-energy crossings of Andreev levels. The junction spin-orbit couplingenters the Josephson current only in the topological-topological case and in amanner determined by the switch locations, thereby allowing quantitativepredictions for experiments with the normal-state conductance, the inducedgaps, and the switch locations as inputs.

Signatures of time-reversal-invariant topological superconductivity in the Josephson effect