Intertwining technique for the one-dimensional stationary Dirac equation
L. M. Nieto, A. A. Pecheritsin, Boris F. Samsonov
Abstract
The technique of differential intertwining operators (or Darboux transformation operators) is systematically applied to the one-dimensional Dirac equation. The following aspects are investigated: factorization of a polynomial of Dirac Hamiltonians, quadratic supersymmetry, closed extension of transformation operators, chains of transformations, and finally particular cases of pseudoscalar and scalar potentials. The method is widely illustrated by numerous examples.
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