Stratification of Moving Multicomponent Bose-Einstein Condensates

TL;DR

This paper investigates the stability of moving multicomponent Bose-Einstein condensates, deriving conditions under which the mixture stratifies due to relative motion, and identifies the critical velocity for this transition.

Contribution

It introduces stability criteria and calculates the critical velocity for stratification in binary moving Bose-Einstein condensates, advancing understanding of their dynamic behavior.

Findings

Derived stability conditions for binary mixtures

Calculated the critical velocity for stratification

Identified the onset of phase separation due to relative motion

Abstract

A mixture of the multicomponent Bose-Einstein condensate is considered, where each component moves with its own velocity. As a result of the relative motion, the mixture stratifies when the relative velocity reaches a critical value. Stability conditions for a binary moving mixture are derived and the critical velocity is found.