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 demonstrate to what extent many copies of maximally entangled two-qubitstates enable for generating a greater amount of certified randomness than thatcan be certified from a single copy. Although it appears that greater thedimension of the system implies a higher amount of randomness, thenon-triviality lies in the device-independent simultaneous certification ofgenerated randomness from many copies of entangled states. This is because,most of the two-outcome Bell inequalities (viz., Clauser-Horne-Shimony-Holt,Elegant, or Chain Bell inequality) are optimized for a single copy of two-qubitentangled state. Thus, such Bell inequalities can certify neither many copiesof entangled states nor a higher amount of randomness. In this work, wesuitably invoke a family of $n$-settings Bell inequalities which is optimizedfor $\lfloor n/2 \rfloor$ copies of maximally entangled two-qubit states,thereby, possess the ability to certify more randomness from many copies oftwo-qubit entangled state.

Device-independent randomness certification using multiple copies of entangled states