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

Frequency analysis of the rf emission of oscillating Josephson supercurrentis a powerful passive way of probing properties of topological Josephsonjunctions. In particular, measurements of the Josephson emission enables todetect the expected presence of topological gapless Andreev bound states thatgive rise to emission at half the Josephson frequency $f_J$, rather thanconventional emission at $f_J$. Here we report direct measurement of rfemission spectra on Josephson junctions made of HgTe-based gate-tunabletopological weak links. The emission spectra exhibit a clear signal at half theJosephson frequency $f_{\rm J}/2$. The linewidths of emission lines indicate acoherence time of $0.3-\SI{4}{ns}$ for the $f_{\rm J}/2$ line, much shorterthan for the $f_{\rm J}$ line ($3-\SI{4}{ns}$). These observations stronglypoint towards the presence of topological gapless Andreev bound states, andpave the way for a future HgTe-based platform for topological quantumcomputation.

Josephson radiation from gapless Andreev bound states in HgTe-based topological junctions