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The physics of exceptional points

Open access
Heiss, W D·2012·Journal of Physics A: Mathematical and Theoretical

Abstract

A short résumé is given about the nature of exceptional points (EPs) followed by discussions about their ubiquitous occurrence in a great variety of physical problems. EPs feature in classical as well as in quantum mechanical problems. They are associated with symmetry breaking for -symmetric Hamiltonians, where a great number of experiments has been performed, in particular in optics, and to an increasing extent in atomic and molecular physics. EPs are involved in quantum phase transition and quantum chaos; they produce dramatic effects in multichannel scattering, specific time dependence and more. In nuclear physics, they are associated with instabilities and continuum problems. Being spectral singularities they also affect approximation schemes. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘Quantum physics with non-Hermitian operators’.

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Metadata

Authors
Heiss, W. D.
Venue
Journal of Physics A: Mathematical and Theoretical
Published
2012-10-23
Volume
45
Issue
44
Pages
444016
ISSN
  • 1751-8113 (ISSN-L)
  • 1751-8121
OpenAlex
W2166080990
Cited by
1,438
References
4
FWCI
8.64
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The physics of exceptional points. https://app.cochat.ai/papers/10.1088/1751-8113/45/44/444016
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Heiss, W. D. (2012). The physics of exceptional points. Journal of Physics A: Mathematical and Theoretical. https://doi.org/10.1088/1751-8113/45/44/444016

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.