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An algebraic q-deformed form for shape-invariant systems

A N F Aleixo et al 2003 J. Phys. A: Math. Gen. 36 11631-11641   doi: 10.1088/0305-4470/36/46/007  Help

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A N F Aleixo1, A B Balantekin2 and M A Cândido Ribeiro3
1 Instituto de Física, Universidade Federal do Rio de Janeiro, RJ, Brazil
2 Department of Physics, University of Wisconsin, Madison, WI 53706, USA
3 Departamento de Física, Instituto de Biociências, Letras e Ciências Exatas UNESP, São José do Rio Preto, SP, Brazil
E-mail: armando@if.ufrj.br and baha@nucth.physics.wisc.edu

Abstract. A quantum deformed theory applicable to all shape-invariant bound-state systems is introduced by defining q-deformed ladder operators. We show that these new ladder operators satisfy new q-deformed commutation relations. In this context we construct an alternative q-deformed model that preserves the shape-invariance property presented by the primary system. q-deformed generalizations of Morse, Scarf and Coulomb potentials are given as examples.

PACS numbers: 02.20.Uw, 03.65.Fd, 03.65.Ge

Print publication: Issue 46 (21 November 2003)
Received 19 August 2003
Published 5 November 2003

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