Publicação: Scattering and bound states of spinless particles in a mixed vector-scalar smooth step potential
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Academic Press Inc. Elsevier B.V.
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Scattering and bound states for a spinless particle in the background of a kink-like smooth step potential, added with a scalar uniform background, are considered with a general mixing of vector and scalar Lorentz structures. The problem is mapped into the Schrodinger-like equation with an effective Rosen-Morse potential. It is shown that the scalar uniform background present subtle and trick effects for the scattering states and reveals itself a high-handed element for formation of bound states. In that process, it is shown that the problem of solving a differential equation for the eigenenergies is transmuted into the simpler and more efficient problem of solving an irrational algebraic equation. (C) 2009 Elsevier B.V. All rights reserved.
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Klein-Gordon equation, Bound states, Scattering
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Inglês
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Annals of Physics. San Diego: Academic Press Inc. Elsevier B.V., v. 324, n. 11, p. 2372-2384, 2009.
