Rk. Gupta et Il. Cooper, Q-DEFORMED LADDER AND SHIFT-OPERATORS FOR 3 EXACTLY SOLVABLE POTENTIALS OBEYING SO(2,1) SYMMETRY, Journal of physics. A, mathematical and general, 27(23), 1994, pp. 7811-7820
The quantum deformation algebra SOq(2, 1) is studied and applied to de
rive the q-analogues of the ladder and shift operators for the radial
Coulomb, radial harmonic oscillator and Morse oscillator potentials. T
he q-deformed operators in all three cases are found to ace like shift
operators, called q-shift operators. Their possible similarity with t
he quasi-shift operators arising in supersymmetric quantum mechanics,
or factorization, of the radial harmonic oscillator is also pointed ou
t.