Orbital Inverse Faraday and Cotton-Mouton Effects in Hall Fluids
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908787528433664 |
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| author | Cardoso, Gabriel Syljuåsen, Erlend Balatsky, Alexander V. |
| author_facet | Cardoso, Gabriel Syljuåsen, Erlend Balatsky, Alexander V. |
| contents | We report two light-induced orbital magnetization effects in quantum Hall (QH) fluids, stemming from their transverse response. The first is a purely transverse contribution to the inverse Faraday effect (IFE), where circularly polarized light induces a DC magnetization by stirring the charged fluid. This contribution dominates the IFE in the QH regime. The second is the orbital inverse Cotton-Mouton effect (ICME), in which linearly polarized light generates a DC magnetization. Since the applied field in the ICME does not break time-reversal symmetry, the induced magnetization directly probes the chiral orbital response of the fluid at the driving frequency. We estimate that the resulting magnetization lies in the range of 0.5-10 Bohr magnetons per charge carrier in materials such as graphene and transition-metal dichalcogenides (TMDs) in the QH regime. Finally, we show that the induced magnetization is accompanied by a local correction to the static particle density, enabling optical quantum printing of density profiles into the QH fluid. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_01946 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Orbital Inverse Faraday and Cotton-Mouton Effects in Hall Fluids Cardoso, Gabriel Syljuåsen, Erlend Balatsky, Alexander V. Mesoscale and Nanoscale Physics Strongly Correlated Electrons We report two light-induced orbital magnetization effects in quantum Hall (QH) fluids, stemming from their transverse response. The first is a purely transverse contribution to the inverse Faraday effect (IFE), where circularly polarized light induces a DC magnetization by stirring the charged fluid. This contribution dominates the IFE in the QH regime. The second is the orbital inverse Cotton-Mouton effect (ICME), in which linearly polarized light generates a DC magnetization. Since the applied field in the ICME does not break time-reversal symmetry, the induced magnetization directly probes the chiral orbital response of the fluid at the driving frequency. We estimate that the resulting magnetization lies in the range of 0.5-10 Bohr magnetons per charge carrier in materials such as graphene and transition-metal dichalcogenides (TMDs) in the QH regime. Finally, we show that the induced magnetization is accompanied by a local correction to the static particle density, enabling optical quantum printing of density profiles into the QH fluid. |
| title | Orbital Inverse Faraday and Cotton-Mouton Effects in Hall Fluids |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2508.01946 |