Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fundamental gaps of quantum dots on the cheap   We show that the fundamental gaps of quantum dots can be accurately estimated
at the computational effort of a standard ground-state calculation supplemented
with a non self-consistent step of negligible cost, all performed within
density-functional theory at the level of the local-density approximation.

36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys