Goswami D, Dasbiswas K, Yoo C-D, Dorsey AT. Dislocation-induced superfluidity in a model supersolid. Phys. Rev. B. 2011;(054523).
(arXiv:1103.0057) PDF
See also:
Condensed Matter Physics:
(arXiv:1103.0057) PDF
(arXiv:0912.3760) pdf