Admittance and noise in an electrically driven nanostructure: interplay between quantum coherence and statistics.

@article{Park2008AdmittanceAN,
  title={Admittance and noise in an electrically driven nanostructure: interplay between quantum coherence and statistics.},
  author={Hee Chul Park and Kang-Hun Ahn},
  journal={Physical review letters},
  year={2008},
  volume={101 11},
  pages={116804}
}
We investigate the interplay between the quantum coherence and statistics in electrically driven nanostructures. We obtain an expression for the admittance and the current noise for a driven nanocapacitor in terms of the Floquet scattering matrix and derive a nonequilibrium fluctuation-dissipation relation. As an interplay between the quantum phase coherence and the many-body correlation, the admittance has peak values whenever the noise power shows a step as a function of the nearby gate… CONTINUE READING