Loss, Gain, and Singular Points in Open Quantum Systems
Joint Authors
Source
Advances in Mathematical Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Non-Hermitian quantum physics is used successfully for the description of different puzzling experimental results, which are observed in open quantum systems.
Mostly, the influence of exceptional points on the dynamical properties of the system is studied.
At these points, two complex eigenvalues Ei≡Ei+iΓi/2 of the non-Hermitian Hamiltonian H coalesce (where Ei is the energy and Γi is the inverse lifetime of the state i).
We show that also the eigenfunctions Φi of the two states play an important role, sometimes even the dominant one.
Besides exceptional points, other critical points exist in non-Hermitian quantum physics.
At these points a=acr in the parameter space, the biorthogonal eigenfunctions of H become orthogonal.
For illustration, we show characteristic numerical results.
American Psychological Association (APA)
Eleuch, H.& Rotter, Ingrid. 2018. Loss, Gain, and Singular Points in Open Quantum Systems. Advances in Mathematical Physics،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1119135
Modern Language Association (MLA)
Eleuch, H.& Rotter, Ingrid. Loss, Gain, and Singular Points in Open Quantum Systems. Advances in Mathematical Physics No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1119135
American Medical Association (AMA)
Eleuch, H.& Rotter, Ingrid. Loss, Gain, and Singular Points in Open Quantum Systems. Advances in Mathematical Physics. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1119135
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119135