The λ-Phenomenon of Liquid Helium and the Bose-Einstein Degeneracy

  title={The $\lambda$-Phenomenon of Liquid Helium and the Bose-Einstein Degeneracy},
  author={Fritz London},
IN a recent paper1 Fröhlich has tried to interpret the λ-phenomenon of liquid helium as an order–disorder transition between n holes and n helium atoms in a body-centred cubic lattice of 2n places. He remarks that a body-centred cubic lattice may be considered as consisting of two shifted diamond lattices, and he assumes that below the λ-point the helium atoms prefer the places of one of the two diamond lattices. The transition is treated on the lines of the Bragg-Williams-Bethe theory as a… Expand
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  • A. Nakayama, N. Makri
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 2005
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