Enhancement of shot noise due to the fluctuation of Coulomb interaction

  title={Enhancement of shot noise due to the fluctuation of Coulomb interaction},
  author={Duo Li and Lei Zhang and Fuming Xu and Jian Wang},
  journal={Physical Review B},
We have developed a theoretical formalism to investigate the contribution of fluctuation of Coulomb interaction to the shot noise based on Keldysh non-equilibrium Green's function method. We have applied our theory to study the behavior of dc shot noise of atomic junctions using the method of nonequilibrium Green's function combined with the density functional theory (NEGF-DFT). In particular, for atomic carbon wire consisting 4 carbon atoms in contact with two Al(100) electrodes, first… 
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