Algebraic Method for Perturbed Three-Body Systems of A2\mathbf {A}_{\mathbf {2}} Solvable Potential

Feb 12, 2020
Published in:
  • Few Body Syst. 61 (2020) 1, 9
  • Published: Feb 12, 2020

Citations per year

0 Citations
Abstract: (Springer)
In this paper, we try to solve the Schrödinger equation in a quasi-exact solvable method for a three-body problem with a special interaction and by adding an anharmonic perturbation term. We consider the interaction and perturbation theory in the Calogero model by the roots of algebra A2A_{2} and rewrite the Hamiltonian in terms of Lie algebra gl3gl_{3} and g2g^{2} generators. Indeed, we show that the gauge transformed Hamiltonian has infinite invariant flags with finite-dimension. Finally, we obtain a range of eigenvalues and eigenfunctions corresponding to its corrections by using the algebraic framework of the perturbation theory.
  • algebra: Lie
  • perturbation theory
  • Hamiltonian
  • Schroedinger equation
  • three-body problem
  • Calogero model
  • perturbation