Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parametric strong mode-coupling in carbon nanotube mechanical resonators   Carbon nanotubes (CNTs) have attracted much attention for use in
nanomechanical devices because of their exceptional properties, such as large
resonant frequencies, low mass, and high quality factors. Here, we report the
first experimental realization of parametric strong coupling between two
mechanical modes on a single CNT nanomechanical resonator, by applying an extra
microwave pump. This parametric pump method can be used to couple mechanical
modes with arbitrary frequency differences. The properties of the mechanical
resonator are detected by single-electron tunneling at low temperature, which
is found to be strongly coupled to both modes. The coupling strength between
the two modes can be tuned by the pump power, setting the coupling regime from
weak to strong. This tunability may be useful in further phonon manipulations
in carbon nanotubes.

16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con