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 show explicitly that there is particle creation in a static spacetime.This is done by studying the field in a coordinate system based on a physicalprinciple which has recently been proposed. There the field is quantized bydecomposing it into positive and negative frequency modes on a particularspacelike surface. This decomposition depends explicitly on the surface wherethe decomposition is performed, so that an observer who travels from onesurface to another will observe particle production due to the different vacuumstate.Comment: 17 pages, RevTeX, no figure

MASSIVE PARTICLE CREATION IN A STATIC (1 + 1)-DIMENSIONAL SPACE-TIME