Non-Hermitian Bose-Hubbard-like quantum models
Fuente:
arXiv
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866914186402988032 |
|---|---|
| author | Znojil, Miloslav |
| author_facet | Znojil, Miloslav |
| contents | Among all of the non-Hermitian large-tridiagonal-matrix quantum Hamiltonians we choose a subclass with the structure resembling the ``benchmark'' realistic Bose-Hubbard model. We demonstrate that this choice can be declared user-friendly in the sense that the underlying singular values can be specified via a ``Hermitized'' Schrödinger-like equation. In particular, the related ``Hermitized'' Green's functions is shown given the two alternative compact and numerically efficient matrix continued fraction forms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_07250 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Non-Hermitian Bose-Hubbard-like quantum models Znojil, Miloslav Quantum Physics Numerical Analysis 81Q05, 15A18 Among all of the non-Hermitian large-tridiagonal-matrix quantum Hamiltonians we choose a subclass with the structure resembling the ``benchmark'' realistic Bose-Hubbard model. We demonstrate that this choice can be declared user-friendly in the sense that the underlying singular values can be specified via a ``Hermitized'' Schrödinger-like equation. In particular, the related ``Hermitized'' Green's functions is shown given the two alternative compact and numerically efficient matrix continued fraction forms. |
| title | Non-Hermitian Bose-Hubbard-like quantum models |
| topic | Quantum Physics Numerical Analysis 81Q05, 15A18 |
| url | https://arxiv.org/abs/2512.07250 |