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Three-level coupled systems and parasupersymmetric shape invariance

A N F Aleixo1 and A B Balantekin2

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A class of bound-state problems which represents the coupling of a three-level atom with a two-dimensional system involving two shape-invariant potentials is introduced. We consider second-order parasupersymmetric quantum-mechanical models and, using an algebraic formulation for shape-invariant potential systems, resolve the eigenvalue problem for these coupled systems considering two possible kinds for the coupling Hamiltonian (linear and nonlinear in the potential ladder operators). An application is given for a couple of shape-invariant potentials (harmonic oscillator + Morse potentials).


PACS

31.15.-p Calculations and mathematical techniques in atomic and molecular physics

03.65.Fd Algebraic methods

MSC

81V45 Atomic physics

81Q60 Supersymmetric quantum mechanics

81Rxx Groups and algebras in quantum theory

Subjects

Atomic and molecular physics

Computational physics

Quantum information and quantum mechanics

Dates

Issue 24 (15 June 2007)

Received 7 February 2007

Published 30 May 2007



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