Comment on "Giant Nernst Effect due to Fluctuating Cooper Pairs in   Superconductors"
  A comment is made on a letter (Phys. Rev. Lett. {\bf 102}, 067001) and a paper (Phys. Rev. B {\bf 83}, 020506) regarding the correct expression of the thermal current vertex for Cooper pairs. 
Osamu Narikiyo
cond-mat.supr-con