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 |
|---|---|
| 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 |
