Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Johnson-Nyquist noise in narrow wires   The Johnson-Nyquist noise in narrow semiconducting wires having a transverse
size smaller than the screening length is shown to be white up to frequency
$D/L^2$ and to decay at higher frequencies as $\omega^{-{1/2}}$. This result is
contrasted with the noise spectra in neutral and charged liquids.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex