Measurements of anisotropic mass of magnons confined in a harmonic trap in superfluid ${}^3$He-B

V. V. Zavjalov, S. Autti, V. B. Eltsov +1

We can pump magnons to a nearly harmonic magneto-textural trap in superfluid ${}^3$He-B. Using the NMR spectroscopy of levels in the trap we have measured the anisotropic magnon mass…