Spin Mixing in Spinor Fermi Gases

TL;DR

This paper investigates how spin-exchange interactions influence the static and dynamic properties of spinor Fermi gases, revealing coherent oscillations in two-body systems that dampen in many-body scenarios.

Contribution

It provides a detailed analysis of the effects of spin-exchange interactions and quadratic Zeeman shifts on both two- and many-body spinor Fermi systems, highlighting the damping of Rabi oscillations in larger systems.

Findings

Spin-exchange induces coherent Rabi oscillations in two-body systems.

Oscillations are quickly damped in many-body systems.

The interplay between interactions and Zeeman shifts affects system dynamics.

Abstract

We study a spinor fermionic system under the effect of spin-exchange interaction. We focus on the interplay between the spin-exchange interaction and the effective quadratic Zeeman shift. We examine the static and the dynamic properties of both two- and many-body system. We find that the spin-exchange interaction induces coherent Rabi oscillation in the two-body system, but the oscillation is quickly damped when the system is extended to the many-body case.