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

How can a multipartite single-photon path-entangled state be certifiedefficiently by means of local measurements? We address this question byconstructing an entanglement witness based on local photon detections precededby displacement operations to reveal genuine multipartite entanglement. Ourwitness is defined as a sum of three observables that can be measured locallyand assessed with two measurement settings for any number of parties $N$. Forany bipartition, the maximum mean value of the witness observable overbiseparable states is bounded by the maximum eigenvalue of an $N\times N$matrix, which can be computed efficiently. We demonstrate the applicability ofour scheme by experimentally testing the witness for heralded 4- and 8-partitesingle-photon path-entangled states. Our implementation shows the scalabilityof our witness and opens the door for distributing photonic multipartiteentanglement in quantum networks at high rates.

Local and scalable detection of genuine multipartite single-photon path entanglement