Spin drag Hall effect in a rotating Bose mixture

TL;DR

This paper predicts and analyzes a spin drag Hall effect in a rotating two-component Bose mixture, highlighting its experimental observability and the temperature-dependent damping behavior near Bose-Einstein condensation.

Contribution

It introduces the concept of a spin drag Hall effect in Bose mixtures and provides a theoretical framework for its experimental detection and temperature dependence.

Findings

Spin drag Hall effect exists in rotating Bose mixtures.

Damping of the out-of-phase dipole mode is enhanced near the BEC transition.

Bose stimulation significantly increases damping close to critical temperature.

Abstract

We show that in a rotating two-component Bose mixture, the spin drag between the two different spin species shows a Hall effect. This spin drag Hall effect can be observed experimentally by studying the out-of-phase dipole mode of the mixture. We determine the damping of this mode due to spin drag as a function of temperature. We find that due to Bose stimulation there is a strong enhancement of the damping for temperatures close to the critical temperature for Bose-Einstein condensation.