Abstract:We further analyze the recently proposed criterion, according to which a superfluid transition occurs whenever the r.m.s. displacement of a particle from its initial position in imaginary time reaches a certain fraction of the interparticle distance. The critical temperature T λ is expressed in terms of the single particle mobility. Within the Drude approximation for the mobility T λ is determined by the friction coefficient (or by the viscosity for dense liquids). To check the validity of the criterion the re… Show more
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