Evidence for Vortex Rings with Multiquantum Circulation in He II

Yiming Xing, Yousef Alihosseini, Sosuke Inui +1

Quantized vortex dynamics in superfluid ${}^4$He (He~II) are widely regarded as well established: circulation is quantized in units of $\kappa =h/m_4$, vortices carrying more than one quan…