Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long range interactions between like homonuclear alkali metal diatoms   Long range electrostatic and van der Waals coefficients up to terms of order
R-8 have been evaluated by the sum over states method using ab initio and time
dependent density functional theory. We employ several widely used density
functionals and systematically investigate the convergence of the calculated
results with basis set size. Static electric moments and polarizabilities up to
octopole order are also calculated. We present values for Li2 through K2 which
are in good agreement with existing values, in addition to new results for Rb2
and Cs2. Interaction potential curves calculated from these results are shown
to agree well with high level it ab initio theory.

36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol