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

The Greenberger-Horne-Zeilinger (GHZ) puzzle has been used to study quantumnonlocality and provide an all-or-nothing, no-go theorem for localhidden-variable models. Recent experiments using coincident-detected entangledphotons prepared in a three-particle GHZ state have been used to test quantumnonlocality, but fail to rule out local realism due to a reliance on thefair-sampling hypothesis and insufficient detection efficiency. This paperdescribes a physically motivated local hidden-variable model based onamplitude-threshold detection that is capable of producing similar results.Detection efficiencies for the model are within the bounds permitted for localrealism and, interestingly, exhibit statistical correlations between detectors,even when the detection events are spacelike separated. Increasing thedetection threshold improves agreement with the ideal quantum predictions atthe cost of decreased detection efficiency. A curious emergent feature of themodel is that detection efficiencies may depend upon which observables arechosen for measurement.

A local hidden-variable model for experimental tests of the GHZ puzzle