Abstract
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.
- Received 28 March 2007
DOI:https://doi.org/10.1103/PhysRevB.76.092502
©2007 American Physical Society