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

We study universally valid uncertainty relations in general quantum systemsdescribed by general $\sigma$-finite von Neumann algebras to foster developingquantitative analysis in quantum systems with infinite degrees of freedom suchas quantum fields. We obtain the most stringent measurement-disturbancerelation ever, applicable to systems with infinite degrees of freedom, byrefining the proofs given by Branciard and one of the authors (MO) for systemswith finite degrees of freedom. In our proof the theory of the standard form ofvon Neumann algebras plays a crucial role, incorporating with measurementtheory for local quantum systems recently developed by the authors.

Universally valid uncertainty relations in general quantum systems