Enhancing light-matter coupling for exploring chaos in the quantum Rabi model
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866908875687460864 |
|---|---|
| author | Hu, Yan-Song Qiu, Yuan Chen, Ye-Hong Zhao, XinYu Xia, Yan |
| author_facet | Hu, Yan-Song Qiu, Yuan Chen, Ye-Hong Zhao, XinYu Xia, Yan |
| contents | Accessing chaos in the quantum Rabi model (QRM) usually requires operating far from resonance, combined with ultra- or deep-strong light-matter coupling.
This makes direct experiments challenging.
In this manuscript, we propose a solution to this challenge by employing an anti-squeezing transformation to the bosonic field.
Specifically, we demonstrate that this transformation maps a weakly coupled, two-photon driven Jaynes-Cummings model (JCM) to an effective deep-strong-coupling QRM in the squeezed-light frame.
Using out-of-time-order correlator, Husimi distribution, and linear entanglement entropy, we numerically probe chaos in this coupling-enhanced platform and observe the similar chaotic phenomena as in the ideal QRM.
We also find the coupling-enhanced model can drive the system deeper into the chaotic regime.
This establishes coupling-enhanced method as a practical approach to study QRM chaos without requiring intrinsic ultra-strong coupling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_09114 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Enhancing light-matter coupling for exploring chaos in the quantum Rabi model Hu, Yan-Song Qiu, Yuan Chen, Ye-Hong Zhao, XinYu Xia, Yan Quantum Physics Accessing chaos in the quantum Rabi model (QRM) usually requires operating far from resonance, combined with ultra- or deep-strong light-matter coupling. This makes direct experiments challenging. In this manuscript, we propose a solution to this challenge by employing an anti-squeezing transformation to the bosonic field. Specifically, we demonstrate that this transformation maps a weakly coupled, two-photon driven Jaynes-Cummings model (JCM) to an effective deep-strong-coupling QRM in the squeezed-light frame. Using out-of-time-order correlator, Husimi distribution, and linear entanglement entropy, we numerically probe chaos in this coupling-enhanced platform and observe the similar chaotic phenomena as in the ideal QRM. We also find the coupling-enhanced model can drive the system deeper into the chaotic regime. This establishes coupling-enhanced method as a practical approach to study QRM chaos without requiring intrinsic ultra-strong coupling. |
| title | Enhancing light-matter coupling for exploring chaos in the quantum Rabi model |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2603.09114 |