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 very weakly coupled linear oscillator is proposed as a detector forobserving time-irreversible characteristics of a quantum system, and it is usedto measure the lifetime during which a classically chaotic quantum system showsdecay of correlation. Except for a particular case where the lifetime agreeswith the conventional Heisenberg time, which is proportional to the Hilbertspace dimension $N$, it is in general much longer: the lifetime increases inproportion to the product of $N$ and the number of superposed eigenstates, andis proportional to $N^2$ in the case of full superposition.

Measuring lifetime of correspondence with classical decay of correlation in quantum chaos