Condensate superfluidity and infrared structure: the Josephson relation
classification
❄️ cond-mat.stat-mech
keywords
condensatedensityinfraredjosephsonrelationstructuresuperfluidderivation
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We derive the Josephson relation in a superfluid between the condensate density, the superfluid mass density, and the infrared structure of the single particle Green's function by means of diagrammatic perturbation theory. The derivation is valid for finite systems and two dimensions.
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