Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Even-Odd Oscillation in Conductance of Single-Row Sodium Nanowire   We present a first-principles calculation of the electronic conduction
properties of single-row sodium nanowires suspended between semi-infinite
electrodes. The conductance of the nanowire is ~1 G0 (=2e^2/h) and oscillates
with a two-atom period as the number of the atoms within the nanowire varies.
Moreover, we observed bunches of high electron density with a two atom-lengths
in the channel density distribution. The relation between the period of the
conductance oscillation and the length of bunches are examined by using
simplified models and is found to be largely affected by the characteristics of
the infinite wire.

16
The categories of this paper are: stat
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs