Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of Quantum Capacitance of individual single walled carbon
  nanotubes   We report a measurement on quantum capacitance of individual semiconducting
and small band gap SWNTs. The observed quantum capacitance is remarkably
smaller than that originating from density of states and it implies a strong
electron correlation in SWNTs.

22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int