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

A possibility to detect correlations between two quantum mechanical systemsonly from the information of a subsystem is investigated. For generic cases, weprove that there exist correlations between two quantum systems if thetime-derivative of the reduced purity is not zero. Therefore, anexperimentalist can conclude non-zero correlations between his/her system andsome environment if he/she finds the time-derivative of the reduced purity isnot zero. A quantitative estimation of a time-derivative of the reduced puritywith respect to correlations is also given. This clarifies the role ofcorrelations in the mechanism of decoherence in open quantum systems.

How to detect a possible correlation from the information of a sub-system in quantum mechanical systems