Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coulomb repulsion and quantum-classical correspondence in laser-induced
  nonsequential double ionization   The influence of electron-electron Coulomb repulsion on nonsequential double
ionization of rare-gas atoms is investigated. Several variants of the
quantum-mechanical transition amplitude are evaluated that differ by the form
of the inelastic electron-ion rescattering and whether or not Coulomb repulsion
between the two electrons in the final state is included. For high laser
intensity, an entirely classical model is formulated that simulates the
rescattering scenario.

30
The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math