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The Spinless Relativistic Kink-Like Problem

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arxiv 1412.4950 v1 pith:AT6IMMNV submitted 2014-12-16 hep-ph math-phmath.MPnucl-thquant-ph

classification hep-phmath-phmath.MPnucl-thquant-ph
keywords bound-stateequationkink-likepotentialproblemsolutionsspinlessvery
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We constrain the possible bound-state solutions of the spinless Salpeter equation (the most obvious semirelativistic generalization of the nonrelativistic Schr\"odinger equation) with an interaction between the bound-state constituents given by the kink-like potential (a central potential of hyperbolic-tangent form) by formulating a bunch of very elementary boundary conditions to be satisfied by all solutions of the eigenvalue problem posed by a bound-state equation of this type, only to learn that all results produced by a procedure very much liked by some quantum-theory practitioners prove to be in severe conflict with our expectations.

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Cited by 1 Pith paper

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  1. Semirelativistic Bound States: (Pseudo-) Spinless-Salpeter Approaches Reassessed

    hep-ph 2019-08 conditional novelty 2.0 of 10

    A proceedings review that applies rigorous spectral bounds to semirelativistic Hamiltonians with generalized Hellmann potentials and warns against pseudo-spinless-Salpeter approximations.

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