Reply to Comment by Alexandrov and Bratkovsky [cond-mat/0603467,   cond-mat/0606366]
  The submitted Comment is based on using an isolated quantum dot approach to discuss the situation where the coupling to the leads is considerable (not negligible). This finite lead coupling is the situation in most molecular transport junctions. In such situations the population on the molecule is not static and dynamical effects (fluctuations) are crucial. While the discussion in [Phys. Rev. B 67, 235312 (2003)], and in the Comment may well apply for an isolated molecule, it is simply irrelevant for the very different transport situation analyzed in our original contribution. 
Michael Galperin, Abraham Nitzan, and Mark A. Ratner