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

The lowest order amplitudes for [$ {\rm graviton+graviton \rightarrow photon+photon}]$ lead to cross-sections of order $G^2$, where $G$ is thegravitational constant. These are too small to be of any interest. However indense clouds of pure gravitons there are collective effects utilizing thesesame amplitudes that under the right circumstances can lead to copiousproduction of photons.

Quantum break in high intensity gravitational wave interactions