EXISTENCE OF HELICAL TEXTURE AROUND SUPERFLOW IN 3He-A

Abstract
We analyze the stability of textures in superfluid 3He-A in the presence of a superflow J. Specializing to purely z dependent configurations, we find three regions in parameter space, which are stable. Two of them exhibit the breakdown of azimuthal symetry where [MATH] is no longer aligned with Jz but winds around it in a form of hélix