Modulational instability of F=2 spinor condensates

Abstract

We first analytically examine the occurrence of modulational instability in all phases of F=2 spinor homogeneous condensate from the possible stationary solutions. Then we numerically show the similar results by extending our analysis to trapped condensates (inhomogeneous). From both analyses we conclude that modulation instability depends on the relative phase between the components and initial population for the polar phase. We also observe spin-mixing dynamics during evolution of the spinor condensate.