Coulomb Blockade without Tunnel Junctions

Details Coulomb Blockade without Tunnel Junctions Coulomb Blockade without Tunnel Junctions

1998-08-31

arxiv.org/abs/cond-mat/9808340v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, no figures(just for a change)

Scientific paper

10.1103/PhysRevLett.82.1245

We find that tunnel junctions are not needed to provide single electron effects in a metallic island. Eventually the tunnel junction may be replaced by an arbitrary scatterer. It is important that even a {\it diffusive} scatterer provides a sufficient isolation for single electron effects to persist. To formulate this in exact terms, we derive and analyze the effective action that describes an arbitrary scatterer. We also consider the fluctuations of the effective charging energy.

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