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 nece?sar> and sufficient condition for the qu?H-equivalence of two quasifree primary representations of the canonical commutation relations is derived. A quasifree state of the self-dual CCR algebra 2f.(^3 Y, F\ which is a slight generalization of conventional canonical commutation relations, has been discussed in the preceding work Ql], In the present paper, we derive a necessary and sufficient condition for the quasi-equivalence of representations associated with quasifree states, when the representation is primary (i.e. the associated von Neumann algebra is a factor). We believe that the following features of the present analysis is worth mentioning.

On Quasifree States of the Canonical Commutation Relations (I)