On the Bose-Einstein Condensation of Rotons
arXiv:1009.4114 · doi:10.1103/PhysRevB.84.024525
Abstract
Bose-Einstein condensation of rotons in helium was considered long ago. It was shown that the relative velocity of the normal motion in this state must be equal to the Landau critical velocity. We argue that the condensation can be attained at a smaller velocity if the temperature is low enough.
9 pages, number decay exponet corrected, references added, minor fixes
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