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Shot noise in semiclassical chaotic cavities

Robert S. Whitney·Philippe Jacquod
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Abstract

We construct a trajectory-based semiclassical theory of shot noise in clean chaotic cavities. In the universal regime of vanishing Ehrenfest time $\tE$, we reproduce the random matrix theory result, and show that the Fano factor is exponentially suppressed as $\tE$ increases. We demonstrate how our theory preserves the unitarity of the scattering matrix even in the regime of finite $\tE$. We discuss the range of validity of our semiclassical approach and point out subtleties relevant to the recent semiclassical treatment of shot noise in the universal regime by Braun et al. [cond-mat/0511292].

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Robert S. Whitney, Philippe Jacquod. 2006-05-18. Shot noise in semiclassical chaotic cavities. https://doi.org/10.1103/physrevlett.96.206804

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