Skip to content
DraconiticResearch
Search Sources API
186,541 studies31 sourcesUpdated 40 min ago
Peer-reviewedCC BY 4.0New Journal of Physics

Enhancing light-matter coupling for exploring chaos in the quantum Rabi model

  • Yan-Song Hu1
  • Yuan Qiu1
  • Yehong Chen1
  • Xinyu Zhao1
  • Yan Xia1
  1. 1Fuzhou University
Open at sourcePDFDOICite

Abstract

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.

Related

  1. Multimode equilibrium approximations in light-matter systems from weak to strong coupling
    Davis M. Welakuh, Vasil Rokaj, Michael Ruggenthaler +1
    Physical Review ResearchPeer-reviewedCC BY 4.0Atomic, molecular & optical physicsCrossref
  2. Steady--State Current Signatures of Strong Light--Matter Coupling in Single--Molecule Junctions
    Kritanjan Polley, Norah M. Hoffmann
    arXivPreprintCC BY 4.0Full textCondensed matterQuantum physics & quantum informationarXiv
  3. Vibrational energy pooling driven by collective light–matter coupling
    Qi Yu, Dong H. Zhang, Joel M. Bowman
    ChemRxivPreprintCC BYFull textAtomic, molecular & optical physicsChemRxiv
  4. Beyond ideal cavities: quantifying the impact of cavity dissipation on light-matter strong coupling
    Giovanna Bruno, Enrico Busani, Lorenzo Gialli +2
    arXivPreprintCC BY 4.0Full textPhysical chemistryQuantum physics & quantum informationarXiv
  5. Spatial Engineering of Topological Quantum Matter with Structured Light
    Matias Mustonen, Ali G. Moghaddam, Teemu Ojanen +1
    arXivPreprintCC BY-NC-ND 4.0Full textCondensed matterOptics & photonicsarXiv

Cite

BibTeXRIS
BibTeX
@article{hu2026enhancing,
  title = {{Enhancing light-matter coupling for exploring chaos in the quantum Rabi model}},
  author = {Yan-Song Hu and Yuan Qiu and Yehong Chen and Xinyu Zhao and Yan Xia},
  journal = {New Journal of Physics},
  year = {2026},
  month = oct,
  doi = {10.1088/1367-2630/aeb822},
  url = {https://iopscience.iop.org/article/10.1088/1367-2630/aeb822},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Enhancing light-matter coupling for exploring chaos in the quantum Rabi model
AU  - Yan-Song Hu
AU  - Yuan Qiu
AU  - Yehong Chen
AU  - Xinyu Zhao
AU  - Yan Xia
PY  - 2026
DA  - 2026/10/22
JO  - New Journal of Physics
DO  - 10.1088/1367-2630/aeb822
UR  - https://iopscience.iop.org/article/10.1088/1367-2630/aeb822
AB  - 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.
SN  - 1367-2630
ER  -