Comment on: ``On the characteristic polynomial of an effective Hamiltonian

DOI10.1016/J.PHYSLETA.2022.128456OpenAlexW4296653561MaRDI QIDQ2093740

Francisco M. Fernández

Publication date: 27 October 2022

Published in: Physics Letters. A (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2209.10112

zbMATH Keywords

perturbation seriesexceptional pointsradius of convergenceresummationeffective secular equation

Mathematics Subject Classification ID

Quantum theory (81-XX) Statistical mechanics, structure of matter (82-XX)

Related Items (2)

On the effective secular equation ⋮ Reply to: ``Comment on: ``On the characteristic polynomial of an effective Hamiltonian'

Cites Work

• On the characteristic polynomial of an effective Hamiltonian
• Perturbation theory for confined systems

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