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 Plus

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

Zendy Tools

Zendy Open

For one-dimensional systems with delta-contact interactions, the convergenceof the exact-diagonalization method is tested with a basis of harmonicoscillator eigenfunctions with frequency $\Omega$ optimized through theminimization of the eigenenergy of the desired level. It is shown that withinthe framework of this approach the well-converged results can be achieved atmuch smaller dimensions of the Hamiltonian matrix than with the standardapproach that uses $\Omega=1$. We present calculations for model systems ofidentical bosons with harmonic and double-well potentials. Our results showpromising potential for diminishing the computational cost of numericalsimulations of various systems of trapped ultracold atoms.

Optimized Configuration Interaction Approach for Trapped Multiparticle Systems Interacting Via Contact Forces