Generalized Bose-Hubbard Hamiltonians exhibiting a complete non-Hermitian degeneracy

DOI10.1016/J.AOP.2019.03.022zbMath1414.81113arXiv1902.10942OpenAlexW3104659701WikidataQ114209550 ScholiaQ114209550MaRDI QIDQ2418775

Miloslav Znojil

Publication date: 29 May 2019

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

Full work available at URL: https://arxiv.org/abs/1902.10942

zbMATH Keywords

higher-order exceptional pointsmultilevel degeneraciesnon-Hermitian quantum dynamics

Mathematics Subject Classification ID

Nonselfadjoint operator theory in quantum theory including creation and destruction operators (81Q12)

Related Items (4)

Anomalous mechanisms of the loss of observability in non-Hermitian quantum models ⋮ Passage through exceptional point: case study ⋮ Unitary unfoldings of a Bose–Hubbard exceptional point with and without particle number conservation ⋮ Exceptional points and domains of unitarity for a class of strongly non-Hermitian real-matrix Hamiltonians

Cites Work

• PSEUDO-HERMITIAN REPRESENTATION OF QUANTUM MECHANICS
• A non-Hermitian \mathcal{P}\mathcal{T} symmetric Bose–Hubbard model: eigenvalue rings from unfolding higher-order exceptional points
• Observation of exceptional points in electronic circuits
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