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 the gravitational wave (GW) production in extremely strong firstorder phase transitions where the latent heat density dominates the plasmaenergy density, $\alpha \gtrsim 1$. In such transitions, bubbles developextremely thin and relativistic fluid configurations, resulting in strong shockwaves after collisions. We first propose a strategy to understand the GWproduction in such a system by separating the problem into the propagation partand the collision part. Focusing on the former, we next develop an effectivetheory for the propagation of the relativistic fluid shells. Using thiseffective theory, we finally calculate the expected duration of therelativistic fluid configurations and discuss its implications to the GWproduction.

Gravitational waves from first-order phase transitions: Ultra-supercooled transitions and the fate of relativistic shocks