Spectral determinant of the two‐photon quantum Rabi model
- The various generalized spectral determinants (G-functions) of the two-photon quantum Rabi model are analyzed with emphasis on the qualitative aspects of the regular spectrum. Whereas all of them yield at least a subset of the exact regular eigenvalues, only the G-function proposed by Chen et al. in 2012 exhibits an explicitly known pole structure which dictates the approach to the collapse point. This function is derived rigorously employing the Z4-symmetry of the model and shown that its zeros correspond to the complete regular spectrum.
Author: | Daniel BraakORCiDGND |
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URN: | urn:nbn:de:bvb:384-opus4-1010186 |
Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/101018 |
ISSN: | 0003-3804OPAC |
ISSN: | 1521-3889OPAC |
Parent Title (German): | Annalen der Physik |
Publisher: | Wiley |
Type: | Article |
Language: | English |
Year of first Publication: | 2023 |
Publishing Institution: | Universität Augsburg |
Release Date: | 2023/01/16 |
Tag: | General Physics and Astronomy |
Volume: | 535 |
Issue: | 3 |
First Page: | 2200519 |
DOI: | https://doi.org/10.1002/andp.202200519 |
Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Experimentalphysik VI | |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand) |