Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Selection and jump rules in electronic Raman scattering from
  GaAs/Al_{x}Ga_{1-x}As artificial atoms   A theoretical description of electronic Raman scattering from
GaAs/Al_{x}Ga_{1-x}As artificial atoms under the influence of an external
magnetic field is presented. Raman spectra with laser excitation energy in the
interval E_{gap}-30 meV to E_{gap} are computed in the polarized and
depolarized geometry. The polarization ratios for the collective and
single-particle excitations indicate a breakdown of the Raman polarization
selection rules once the magnetic field is switched on. A Raman intensity jump
rule at the band gap is predicted in our calculations. This rule can be a
useful tool for identifying the physical nature (charge or spin) of the
electronic excitations in quantum dots in low magnetic fields.

2
The categories of this paper are: math
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol