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

We design a quantum repeater architecture using individual $^{167}$Er ionsdoped into Y$_2$SiO$_5$ crystal. This ion is a promising candidate for arepeater protocol because of its long hyperfine coherence time in addition toits ability to emit photons within the telecommunication wavelength range. Todistribute entanglement over a long distance, we propose two different swappinggates between nearby ions using the exchange of virtual cavity photons and theelectric dipole-dipole interaction. We analyze their expected performance, anddiscuss their strengths and weaknesses. Then, we show that a post-selectionapproach can be implemented to improve the gate fidelity of the virtual photonexchange scheme by monitoring cavity emission. Finally, we use our results forthe swapping gates to estimate the end-to-end fidelity and distribution ratefor the protocol.

Protocols for long-distance quantum communication with single $^{167}$Er ions