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/

Zendy Plus

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

Zendy Tools

Zendy Open

We study bound states embedded into the continuum of edge states intwo-dimensional topological insulators. These states emerge in the presence ofa short-range potential of a structural defect coupled to the boundary. In thiscase the edge states flow around the defect and have two resonances in thelocal density of states. The bound state in continuum (BIC) arises due to aninterference of the resonances when they are close to the degeneracy. We findthe condition under which the BIC appears, study the spacial distribution ofthe electron density, and show that the BIC has a helical structure with anelectron current circulating around the defect.

Helical bound states in the continuum of the edge states in two dimensional topological insulators