We study a multispecies Calogero model on the line for 2 N  and 3 N . Here, we perform a gauge transformation on the Calogero Hamiltonian Hwhich leads to the new operator H ~ called the gauge one. We establish the some vector spaces of polynomials preserved by the gauge Hamiltonian in the cases of equal and different masses. The eigen values of these both cases are computed algebraically. The operator H ~ (thereforeH) is called quasi-exactly solvable.

Author(s) Details

Ancilla Nininahazwe
Université du Burundi, Institut de Pédagogie Appliquée, B.P. 5223 Bujumbura, Burundi.

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