Determination of Resonance Parameters byUse of Padé III Approximation

Conference paper

Determination of Resonance Parameters byUse of Padé III Approximation

Horáček, J.

In: CPI168, Numerical Analysis and Applied Mathematics, International Conference 2009, ed. T.E. Simos, G. Psihoyios, and Ch. Tsitouras, American Institute of Physics 978=0-7354-0705-3/09/$25.00 (2009)

Abstract

Analytic continuation in the coupling constant us studied by means of the statistical
Padé approximation (Padé III approximation). The method is used to calculate resonance energies and widths for model potential, consisting of two Dirac δ=functions, which allows for an analytic solution of the scattering problem. Bound states are determined for a range of coupling parameters and the resonance parameters are then obtained by the analytic continuation. The role of selection of the input data on the calculated resonance parameters is discussed.

Institute authors

Horáček, Jiří

BibTeX

@inproceedings{UTF411,
  author        = {Horáček, J.},
  title         = {{Determination of Resonance Parameters byUse of Padé III Approximation}},
  booktitle     = {CPI168, Numerical Analysis and Applied Mathematics, International Conference 2009},
  editor        = {T.E. Simos, G. Psihoyios, and Ch. Tsitouras},
  publisher     = {American Institute of Physics 978=0-7354-0705-3/09/\$25.00},
  volume        = {1},
  year          = {2009},
}