Spin excitations in fermion condensates

TL;DR

This paper studies collective spin excitations in two-component fermion condensates, focusing on how unequal populations affect monopole and dipole modes, revealing spin oscillations' higher sensitivity to interactions.

Contribution

It introduces a detailed analysis of spin excitations in fermion condensates with population imbalance, highlighting their sensitivity to interactions and properties.

Findings

Spin oscillations are more sensitive to interactions than density oscillations.

Frequencies of monopole and dipole modes are calculated using Thomas-Fermi and scaling methods.

Unequal populations significantly influence spin excitation behavior.

Abstract

We investigate collective spin excitations in two-component fermion condensates with special consideration of unequal populations of the two components. The frequencies of monopole and dipole modes are calculated using Thomas-Fermi theory and the scaling approximation. We demonstrate that spin oscillations have more sensitivity to the interaction and the properties of the condensates than the density oscillations.