Pk. Bera et al., COMBINED VARIABLE-PHASE SUPERSYMMETRIC QUANTUM-MECHANICS, Journal of physics. A, mathematical and general, 26(20), 1993, pp. 1073-1077
Methods of supersymmetric quantum mechanics (SUSYQM) are used to deriv
e relations between phase functions which occur in the context of the
variable-phase approach to potential scattering. It is shown that the
phase-equivalent potentials obtained by the application of SUSYQM are
not off-shell equivalent. A case study is presented in support of this
.