Quantum degeneracy and interaction effects in spin-polarized Fermi-Bose mixtures

TL;DR

This paper investigates the effects of quantum degeneracy and interactions in spin-polarized Fermi-Bose mixtures, focusing on expansion dynamics, equilibrium behavior, and experimental implications, especially for potassium isotope mixtures.

Contribution

It provides a detailed analysis of interaction effects and expansion mechanisms in spin-polarized Fermi-Bose mixtures, with specific insights into potassium isotope systems.

Findings

Interaction significantly influences expansion dynamics.

Fermi component behavior differs from Bose gases under interactions.

Experimental measurement strategies are discussed.

Abstract

Various features of spin-polarized Fermi gases confined in harmonic traps are discussed, taking into account possible perspectives of experimental measurements. The mechanism of the expansion of the gas is explicitly investigated and compared with the one of an interacting Bose gas. The role of interactions on the equilibrium and non equilibrium behaviour of the fermionic component in Fermi-Bose mixtures is discussed. Special emphasis is given to the case of potassium isotopes mixtures.