Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective-Field Excitations in the Calogero Model   We consider the large-N Calogero model in the \h\ collective-field approach
based on the $1/N$ expansion. The Bogomol'nyi limit appears and the
corresponding equation for the semiclassical configuration gives the correct
ground-state energy. Using the method of the orthogonal polynomial we find the
excitation spectrum of density fluctuations around the semiclassical solution
for any value of the statistical parametar $\l$. The wave functions of the
excited states are explicitly constructed as a product of Hermite polynomials
in terms of the collective modes.The two-point correlation function is
calculated as a series expansion in $1/\rho$ for any intermediate statistics.

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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: cs
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The categories of this paper are: atom-ph