Nonclassical Photon-Bundle Correlations in Quantum Rabi Models
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866918414384103424 |
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| author | Zhang, Yong-Xin Wang, Chen Chen, Qing-Hu |
| author_facet | Zhang, Yong-Xin Wang, Chen Chen, Qing-Hu |
| contents | We investigate nonclassical photon-bundle correlations in the quantum Rabi model and its extended cases, using the quantum dressed master equation. By tuning the light--matter coupling strength at finite temperature, the quantum Rabi model exhibits controllable nonclassical transitions between two-photon bundle bunching and antibunching, allowing for the two-photon bundle emission and statistics. We further introduce anisotropic coupling and nonlinear Stark interactions, which enrich the photon statistical behaviors and provide additional tunability of photon-bundle correlations. Extreme correlation behaviors are found to be closely linked to excited-state quantum phase transitions, suggesting a potential pathway for predicting and exploiting excited-state phenomena. These effects can be controlled solely by tuning intrinsic system parameters, without the need for an external modulating field. The quantum Rabi model family thus provides a flexible and experimentally feasible platform for high-purity photon bundle generation and controllable multi-photon sources. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_27160 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Nonclassical Photon-Bundle Correlations in Quantum Rabi Models Zhang, Yong-Xin Wang, Chen Chen, Qing-Hu Quantum Physics We investigate nonclassical photon-bundle correlations in the quantum Rabi model and its extended cases, using the quantum dressed master equation. By tuning the light--matter coupling strength at finite temperature, the quantum Rabi model exhibits controllable nonclassical transitions between two-photon bundle bunching and antibunching, allowing for the two-photon bundle emission and statistics. We further introduce anisotropic coupling and nonlinear Stark interactions, which enrich the photon statistical behaviors and provide additional tunability of photon-bundle correlations. Extreme correlation behaviors are found to be closely linked to excited-state quantum phase transitions, suggesting a potential pathway for predicting and exploiting excited-state phenomena. These effects can be controlled solely by tuning intrinsic system parameters, without the need for an external modulating field. The quantum Rabi model family thus provides a flexible and experimentally feasible platform for high-purity photon bundle generation and controllable multi-photon sources. |
| title | Nonclassical Photon-Bundle Correlations in Quantum Rabi Models |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2603.27160 |