Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbation hydrogen-atom spectrum in deformed space with minimal
  length   We study energy spectrum for hydrogen atom with deformed Heisenberg algebra
leading to minimal length. We develop correct perturbation theory free of
divergences. It gives a possibility to calculate analytically in the 3D case
the corrections to $s$-levels of hydrogen atom caused by the minimal length.
Comparing our result with experimental data from precision hydrogen
spectroscopy an upper bound for the minimal length is obtained.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int