Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simultaneous dipole and quadrupole moment contribution in the Bogoliubov
  spectrum: Application of the non-integral Gross-Pitaevskii equation   We present the Gross-Pitaevskii equation for Bose-Einstein condensates (BECs)
possessing the electric dipole and the electric quadrupole moments in a
non-integral form. These equations are coupled with the Maxwell equations. The
model under consideration includes the dipole-dipole, the dipole-quadrupole,
and the quadrupole-quadrupole interactions in terms of the electric field
created by the dipoles and quadrupoles. We apply this model to obtain the
Bogoliubov spectrum for three dimensional BECs with a repulsive short-range
interaction. We obtain an extra term in the Bogoliubov spectrum in compare with
the dipolar BECs. We show that the quadrupole-quadrupole interaction gives a
positive contribution in the Bogoliubov spectrum. Hence this spectrum is
stable.

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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg