Extracting \(S\)-matrix poles for resonances from numerical scattering data: type-II Padé reconstruction

DOI10.1016/j.cpc.2010.10.002zbMath1216.81134OpenAlexW2101514339MaRDI QIDQ537028

Yong-Cai Geng, Sumit K. Garg

Publication date: 31 May 2011

Published in: Computer Physics Communications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.cpc.2010.10.002

zbMATH Keywords

Padé approximation\(S\)-matrixresonancesRegge polesatomic and molecular collisions

Mathematics Subject Classification ID

Scattering theory for PDEs (35P25) Padé approximation (41A21) Atomic physics (81V45) Software, source code, etc. for problems pertaining to quantum theory (81-04) (S)-matrix theory, etc. in quantum theory (81U20) Molecular physics (81V55)

Related Items

Numerical Regge pole analysis of resonance structures in elastic, inelastic and reactive state-to-state integral cross sections

Uses Software

• NAG
• nag
• ABC
• MPFUN
• Algorithm 719
• C02AFF
• G05CAF
• E02ACF

Cites Work

• Weierstrass formula and zero-finding methods
• Algorithm 719: Multiprecision translation and execution of FORTRAN programs
• ABC: a quantum reactive scattering program
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