Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shot noise in chaotic systems: "classical" to quantum crossover   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.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph