Phys. Rev. B 76, 092502 (2007) [3 pages]Condensate superfluidity and infrared structure of the single-particle Green’s function: The Josephson relationReceived 28 March 2007; revised 2 July 2007; published 21 September 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.76.092502
DOI:
10.1103/PhysRevB.76.092502
PACS:
05.30.Jp, 03.75.Hh
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