Degeneracy of resonances, Jordan blocks, and Gamow-Jordan eigenfunctions

DOI10.1023/B:IJTP.0000005953.43759.c7zbMath1052.81103OpenAlexW1965112484MaRDI QIDQ1421627

D. Massart

Publication date: 3 February 2004

Published in: International Journal of Theoretical Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1023/b:ijtp.0000005953.43759.c7

zbMATH Keywords

Berry phasedegeneracy of resonancesnonrelativistic scattering theory

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) (S)-matrix theory, etc. in quantum theory (81U20) (2)-body potential quantum scattering theory (81U05) Scattering theory, inverse scattering involving ordinary differential operators (34L25)

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Particular spectral singularity in the continuum energies: a manifestation as resonances

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