Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trapping and localization of particles by a potential well deepening
  with time   The universal mechanism of trapping and localization of sufficiently
slow-speed particles by a potential well deepening with time is established on
the basis of fundamental relations of classical mechanics. Such wells may be
created for a wide range both charged and neutral particles (with electric or
magnetic moments) by means of a controllable electromagnetic field with growing
strength (up to a certain moment) but with a fixed spatial distribution.
Detailed analysis of features of corresponding electromagnetic traps of
particles is carried out on the visual example of the one-dimensional
rectangular potential well deepening with time. Obtained results may be used in
ultrahigh resolution spectroscopy of various microparticles (including atoms,
molecules and ions).

18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci