Eigenphase preserving two-channel SUSY transformations

摘要: We propose a new kind of supersymmetric (SUSY) transformation in the case two-channel scattering problem with equal thresholds for partial waves same parity. This two-fold is based on two imaginary factorization energies opposite signs and mutually conjugated solutions. call it an eigenphase preserving SUSY as relates Hamiltonians, matrices which have identical shifts. In contrast to known phase-equivalent transformations, mixing parameter modified by transformation.