Avoided level crossings and Riemann sheet structure

DOI10.1063/1.529044zbMath0899.47050OpenAlexW1986003612MaRDI QIDQ3987397

Willi-Hans Steeb, W. D. Heiss

Publication date: 28 June 1992

Published in: Journal of Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1063/1.529044

zbMATH Keywords

\(N\)-dimensional symmetric matrix problemRiemann sheet structure of the energy levels

Mathematics Subject Classification ID

Applications of operator theory in the physical sciences (47N50) Perturbation theory of linear operators (47A55) Perturbation theories for operators and differential equations in quantum theory (81Q15)

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Cites Work

• Spectral properties of the scaled quartic anharmonic oscillator