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/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

In this work, we implement the semi-analytical WKB method to explore thebehaviour of a scalar field on a traversable wormhole space--time with aCasimir--like complexity reported in Eur. Phys. J. C 82, 420 (2022). Weestimate the error in the computation of the quasi--normal frequencies of thescalar field at each order in the WKB and show that the order with the bestaccuracy is not unique. We compute the value of the quasinormal frequencies forthe smallest estimated error. As an aside, we find that the imaginary part ofthe quasinormal modes frequencies approach to zero for the fundamental modemimicking the so--called quasi--resonance observed for massive scalar fields inthe Reissner--Nordstr\"{o}m background.

Quasi normal modes of a Casimir--like traversable wormhole through the semi-analytical WKB approach