A Diagrammer's Note on Superconducting Fluctuation Transport for   Beginners: I. Conductivity and Thermopower
  A diagrammatic approach based on thermal Green function to superconducting fluctuation transport is reviewed keeping consistency with Ginzburg-Landau theory. The correct expression of the heat current vertex for Cooper pairs is clarified via Jonson-Mahan formula and Ward identities. 
Osamu Narikiyo
cond-mat.supr-con