Vortex state in Bose-Fermi mixture with attraction between bosons and fermions

TL;DR

This paper investigates vortex states in ultracold Bose-Fermi mixtures with attractive interactions, showing that vortices increase the critical number of bosons for stability using variational and Thomas-Fermi methods.

Contribution

It introduces a detailed analysis of vortex states in Bose-Fermi mixtures with attraction, highlighting the stabilizing effect of vortices on the Bose component.

Findings

Vortex states increase the critical number of bosons for stability.

Attractive interactions influence the stability and vortex formation.

Variational and Thomas-Fermi approaches effectively model the system.

Abstract

Vortex states in the mixture of ultracold atomic clouds of bosons and fermions are investigated using the effective Hamiltonian for the Bose subsystem. A stability of the Bose system in the case of attractive interaction between components is studied in the framework of variational Bose wave function and Thomas-Fermi approximation. It is shown that the critical number of bosons increases in the presence of the vortex.