Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relativistic corrections to the long range interaction between closed
  shell atoms   The complete $O(\alpha^2)$ correction to the long range interaction between
neutral closed shell atoms is obtained, the relation to the asymptotic
expansion of the known short range interaction at the atomic scale is presented
and a general interaction potential which is valid in the whole range of the
inter atomic distances is constructed.

0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom