Symmetric Fock space and orthogonal symmetric polynomials associated with the Calogero model

Details Symmetric Fock space and orthogonal symmetric polynomials associated with the Calogero model Symmetric Fock space and orthogonal symmetric polynomials associated with the Calogero model

1998-03-24

arxiv.org/abs/cond-mat/9803284v1

Physics

Condensed Matter

Statistical Mechanics

23pages, LaTeX

Scientific paper

Using a similarity transformation that maps the Calogero model into $N$ decoupled quantum harmonic oscillators, we construct a set of mutually commuting conserved operators of the model and their simultaneous eigenfunctions. The simultaneous eigenfunction is a deformation of the symmetrized number state (bosonic state) and forms an orthogonal basis of the Hilbert (Fock) space of the model. This orthogonal basis is different from the known one that is a variant of the Jack polynomial, i.e., the Hi-Jack polynomial. This fact shows that the conserved operators derived by the similarity transformation and those derived by the Dunkl operator formulation do not commute. Thus we conclude that the Calogero model has two, algebraically inequivalent sets of mutually commuting conserved operators, as is the case with the hydrogen atom. We also confirm the same story for the $B_{N}$-Calogero model.

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