Models for Superfluid $^3$He in Aerogel
  Several recent experiments find evidence of superfluidity of 3He in 98%-porous aerogel. The primary effect of the aerogel is that it scatters the quasiparticles of 3He. We find that many experimental findings are quantitatively understood by a relatively simple model that takes into account strong inhomogeneity of the scattering on a length scale of 100 nm. 
E.V. Thuneberg (Helsinki University of Technology), S.K. Yip   (Northwestern University), M. Fogelstr\"om ({\AA}bo Akademi) ...