Shot noise in chaotic systems: "classical" to quantum crossover

Details Shot noise in chaotic systems: "classical" to quantum crossover Shot noise in chaotic systems: "classical" to quantum crossover

1999-12-06

arxiv.org/abs/cond-mat/9912086v3

Phys. Rev. Lett 85, 3153 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 .eps file, LaTeX, reference added

Scientific paper

10.1103/PhysRevLett.85.3153

This paper is devoted to study of the classical-to-quantum crossover of the shot noise value in chaotic systems. This crossover is determined by the ratio of the particle dwell time in the system, $\tau_d$, to the characteristic time for diffraction $t_E \simeq \lambda^{-1} |\ln \hbar|$, where $\lambda$ is the Lyapunov exponent. The shot noise vanishes in the limit $t_E \gg \tau_d $, while reaches its universal quantum value in the opposite limit. Thus, the Lyapunov exponent of chaotic mesoscopic systems may be found by the shot noise measurements.

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