Collective-Field Excitations in the Calogero Model

Details Collective-Field Excitations in the Calogero Model Collective-Field Excitations in the Calogero Model

1994-09-30

arxiv.org/abs/hep-th/9409191v2

Fizika B4 (1995) 93-110

Physics

High Energy Physics

High Energy Physics - Theory

the two-point correlation function is calculated as a series expansion in one over rho for intermediate statistics

Scientific paper

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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