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

In this paper, we analyze numerically the behaviour of the solutionscorresponding to a non-Abelian cosmic string in the framework of theStarobinsky model, i.e. where $f(R)=R + \zeta R^2$. We perform the calculationsfor both an asymptotically flat and asymptotically (anti)de Sitter spacetimes.We found that the angular deficit generated by the string decreases as theparameter $\zeta$ increases, in the case of a null cosmological constant. For apositive cosmological constant, we found that the cosmic horizon is affected ina non-trivial way by the parameter $\zeta$.

Non-Abelian cosmic string in the Starobinsky model of gravity