Yukawa bosons in two-dimensional Harmonic confinement

TL;DR

This paper investigates the ground state properties of Yukawa bosons in a two-dimensional harmonic trap using density functional theory, revealing that Yukawa interactions are energetically more favorable than contact interactions.

Contribution

It introduces a density functional approach to study Yukawa bosons in a harmonic trap and compares results with the Gross-Pitaevskii model, highlighting the energetic advantages of Yukawa interactions.

Findings

Yukawa bosons are energetically favorable compared to delta potential interactions.

Density functional theory effectively models inhomogeneous Yukawa boson systems.

Comparison with Gross-Pitaevskii model provides insights into interaction effects.

Abstract

The ground state property of Yukawa Bose fluid confined in a radial harmonic trap is studied. The calculation was carried out using the density functional theory formalism within the Kohn-Sham scheme. The excess-correlation energy for this inhomogeneous fluid is approximated via the local density approximation. A comparison is also made with the Gross-Piteavskii model. We found that the system of bosons interacting in terms of Yukawa potential in a harmonic trap is energetically favorable compared to the ones interacting via contact delta potential.