Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Projection of angular momentum via linear algebra   Projection of many-body states with good angular momentum from an initial
state is usually accomplished by a three-dimensional integral. We show how
projection can instead be done by solving a straightforward system of linear
equations. We demonstrate the method and give sample applications to $^{48}$Cr
and $^{60}$Fe in the $pf$ shell. This new projection scheme, which is
competitive against the standard numerical quadrature, should also be
applicable to other quantum numbers such as isospin and particle number.

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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
2
The categories of this paper are: math
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The categories of this paper are: comp-gas