Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quadrupole Collective States in a Large Single-J Shell   We discuss the ability of the generator coordinate method (GCM) to select
collective states in microscopic calculations. The model studied is a
single-$j$ shell with hamiltonian containing the quadrupole-quadrupole
interaction. Quadrupole collective excitations are constructed by means of the
quadrupole single-particle operator. Lowest collective bands for $j$=31/2 and
particle numbers $N$=4,6,8,10,12, and $14$ are found. For lower values of $j$,
exact solutions are obtained and compared with the GCM results.

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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg