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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recently, a new type of symmetry for three-qubit quantum states wasintroduced, the so-called Greenberger-Horne-Zeilinger (GHZ) symmetry. Itincludes the operations which leave the three-qubit standard GHZ stateunchanged. This symmetry is powerful as it yields families of mixed states thatare, on the one hand, complex enough from the physics point of view and, on theother hand, simple enough mathematically so that their properties can becharacterized analytically. We show that by using the properties ofGHZ-symmetric states it is straightforward to derive optimal witnesses forthree-qubit entanglement.

Optimal witnesses for three-qubit entanglement from Greenberger-Horne-Zeilinger symmetry