@article{BaumgaertelKaldassKomy2009,
  author    = {Baumgaertel, Hellmut and Kaldass, Hani and Komy, Soliman},
  title     = {On spectral properties of the resonances for selected potential scattering systems},
  issn      = {0022-2488},
  doi       = {10.1063/1.3072675},
  year      = {2009},
  abstract  = {The resonances (poles of the scattering matrix) of quantum mechanical scattering by central-symmetric potentials with compact support and zero angular momentum are spectrally characterized directly in terms of the Hamiltonian by a (generalized) eigenvalue problem distinguished by an additional condition (called boundary condition). The connection between the (generalized) eigenspace of a resonance and corresponding Gamov vectors is pointed out. A condition is presented such that a relation between special transition probabilities and infinite sums of residual terms for all complex-conjugated pairs of resonances can be proved. In the case of the square well potential the condition is satisfied.},
  language  = {en}
}