Tunneling critical velocity of a superfluid

Tunneling critical velocity of a superfluid. [Lifshitz-Kogan theory]

Superfluid Instability and Critical Velocity in Two and Three Dimensions

Critical velocity and arrest of a superfluid in a pointlike disordered potential

Two Critical velocities for a superfluid in a periodic potential

Critical angular velocities for two-dimensional superfluidity

Critical velocities of persistent currents of superfluid helium