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

Comparison of statistical models (experiments) is an important branch ofmathematical statistics, which gives deep insights in many aspects offoundation of statistics. So far, there are two quantum versions of theconcept: Comparison with respect to classical tasks and full quantum tasks. Inthe latter version, a quantum statistical model is more informative thananother if and only if a trace preserving positive map sends the former to thelatter. On the other hand, in the former version, the existence of a tracepreserving positive map sending the former to the latter is a useful sufficientcondition. A natural question is whether this is necessary or not. We resolvethis question negatively by giving a counter example.

An example of a quantum statistical model which cannot be mapped to a less informative one by any trace preserving positive map