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 draw attention on the fact that the Riccati-Pad\'e method developed sometime ago enables the accurate calculation of bound-state eigenvalues as well asof resonances embedded either in the continuum or in the discrete spectrum. Weapply the approach to several one-dimensional models that exhibit differentkind of spectra. In particular we test a WKB formula for the imaginary part ofthe resonance in the discrete spectrum of a three-well potential.

Highly accurate calculation of the real and complex eigenvalues of one-dimensional anharmonic oscillators