Transport Phenomena in Helium II

  title={Transport Phenomena in Helium II},
  author={L. Tisza},
F. LONDON1 has recently proposed a new conception of helium II, according to which this liquid can be regarded as a degenerate Bose-Einstein gas, that is, as a system in which one fraction of the substance—say, n atoms per cm.3—is distributed over the excited states in a way determined by the temperature, while the rest—n0–n atoms per cm.3—is ‘condensed’ in the lowest energy level. If T0 denotes the temperature of degeneracy, the ratio n/n0 is given by For an ideal Bose-Einstein gas, according… Expand
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