Shot noise of weak cotunneling current: Non-equilibrium fluctuation-dissipation theorem

Details Shot noise of weak cotunneling current: Non-equilibrium fluctuation-dissipation theorem Shot noise of weak cotunneling current: Non-equilibrium fluctuation-dissipation theorem

2001-06-15

arxiv.org/abs/cond-mat/0106307v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 1 figure, submitted for "Electronic Correlations: From meso- to nano-physics", edited by G. Montambaux and T. Martin,

Scientific paper

We study the noise of the cotunneling current through one or several
tunnel-coupled quantum dots in the Coulomb blockade regime. We consider the
regime of weak (elastic and inelastic) cotunneling, and prove a non-equilibrium
fluctuation-dissipation theorem which leads to a universal expression for the
noise-to-current ratio (Fano factor).

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