Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current noise of a single-electron transistor coupled to a
  nano-mechanical resonator   The current noise spectrum of a single-electron transistor (SET) coupled to a
nano-mechanical resonator is calculated in the classical regime. Correlations
between the charge on the SET island and the position of the resonator give
rise to a distinctive noise spectrum which can be very different from that of
the uncoupled SET. The current noise spectrum of the coupled system contains
peaks at both the frequency of the resonator and double the resonator
frequency, as well as a strong enhancement of the zero-frequency noise. The
heights of the peaks are controlled by the strength of the coupling between the
SET and the resonator, the damping of the resonator, and the temperature of the
system.

2
The categories of this paper are: math
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th