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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.10615 |
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| _version_ | 1866916397063340032 |
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| author | Eckhardt, Christian J. Grankin, Andrey Kennes, Dante M. Ruggenthaler, Michael Rubio, Angel Sentef, Michael A. Hafezi, Mohammad Michael, Marios H. |
| author_facet | Eckhardt, Christian J. Grankin, Andrey Kennes, Dante M. Ruggenthaler, Michael Rubio, Angel Sentef, Michael A. Hafezi, Mohammad Michael, Marios H. |
| contents | Engineering phases of matter in cavities requires effective light-matter coupling strengths that are on the same order of magnitude as the bare system energetics, coined the ultra-strong coupling regime. For models of itinerant electron systems, which do not have discrete energy levels, a clear definition of this regime is outstanding to date. Here we argue that a change of the electronic mass exceeding $10\%$ of its bare value may serve as such a definition. We propose a quantitative computational scheme for obtaining the electronic mass in relation to its bare vacuum value and show that coupling to surface polariton modes can induce such mass changes. Our results have important implications for cavity design principles that enable the engineering of electronic properties with quantum light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_10615 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Surface-mediated ultra-strong cavity coupling of two-dimensional itinerant electrons Eckhardt, Christian J. Grankin, Andrey Kennes, Dante M. Ruggenthaler, Michael Rubio, Angel Sentef, Michael A. Hafezi, Mohammad Michael, Marios H. Strongly Correlated Electrons Quantum Physics Engineering phases of matter in cavities requires effective light-matter coupling strengths that are on the same order of magnitude as the bare system energetics, coined the ultra-strong coupling regime. For models of itinerant electron systems, which do not have discrete energy levels, a clear definition of this regime is outstanding to date. Here we argue that a change of the electronic mass exceeding $10\%$ of its bare value may serve as such a definition. We propose a quantitative computational scheme for obtaining the electronic mass in relation to its bare vacuum value and show that coupling to surface polariton modes can induce such mass changes. Our results have important implications for cavity design principles that enable the engineering of electronic properties with quantum light. |
| title | Surface-mediated ultra-strong cavity coupling of two-dimensional itinerant electrons |
| topic | Strongly Correlated Electrons Quantum Physics |
| url | https://arxiv.org/abs/2409.10615 |