Multi-channel phase-equivalent transformation and supersymmetry

Details Multi-channel phase-equivalent transformation and supersymmetry Multi-channel phase-equivalent transformation and supersymmetry

2000-09-29

arxiv.org/abs/nucl-th/0009092v1

Phys.Atom.Nucl. 63 (2000) 1993-1998; Yad.Fiz. 63 (2000) 2085-2090

Physics

Nuclear Physics

Nuclear Theory

9 pages, revtex; to be published in Phys. At. Nucl. (Oct. 2000)

Scientific paper

10.1134/1.1335100

Phase-equivalent transformation of local interaction is generalized to the multi-channel case. Generally, the transformation does not change the number of the bound states in the system and their energies. However, with a special choice of the parameters, the transformation removes one of the bound states and is equivalent to the multi-channel supersymmetry transformation recently suggested by Sparenberg and Baye. Using the transformation, it is also possible to add a bound state to the discrete spectrum of the system at a given energy $E<0$ if the angular momentum at least in one of the coupled channels $l\ge 2$.

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