Equations of motions and velocities of longitudinal waves for superfluid ³He–A filled aerogel in the presence

Abstract

We have determined the dynamic equations for superfluid ³He–A filled aerogel in finite magnetic fields. The speeds of propagating longitudinal modes for this system have been found for A₁ and A phases. We have shown that sound phenomena in case ³He–A₁ superfluid are modified from those for He II superfluid.