Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coulomb blockade in electron transport through a C$_{60}$ molecule from
  first principles   We present results of spin-unrestricted first-principles quantum transport
for a gated C$_{60}$ molecule weakly contacted to Al electrodes, making
emphasis on the role played by the electronic localization and the spin degree
of freedom. As expected, the conductance presents a series of peaks as a
function of a gate voltage, demonstrating that transport in the Coulomb
blockade regime can be properly treated within a first-principles scheme. A
well-known manifestation of the interplay between Coulomb interaction and the
spin degree of freedom in atoms and molecules, the Hund 's rule, determines the
sequence of conductance peaks.

27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex