Trembling Motion of Exciton-Polaritons Close to the Rashba-Dresselhaus Regime
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910651868250112 |
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| author | Wen, Wen Liang, Jie Xu, Huawen Jin, Feng Rubo, Yuri G. Liew, Timothy C. H. Su, Rui |
| author_facet | Wen, Wen Liang, Jie Xu, Huawen Jin, Feng Rubo, Yuri G. Liew, Timothy C. H. Su, Rui |
| contents | We report the experimental emulation of trembling quantum motion, or Zitterbewegung, of exciton polaritons in a perovskite microcavity at room temperature. By introducing liquid crystal molecules into the microcavity, we achieve spinor states with synthetic Rashba-Dresselhaus spin-orbit coupling and tunable energy splitting. Under a resonant excitation, the polariton fluid exhibits clear trembling motion perpendicular to its flowing direction, accompanied by a unique spin pattern resembling interlocked fingers. Furthermore, leveraging on the sizable tunability of energy gaps by external electrical voltages, we observe the continuous transition of polariton Zitterbewegung from relativistic (small gaps) to non-relativistic (large gaps) regimes. Our findings pave the way for using exciton polaritons in the emulation of relativistic quantum physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_19791 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Trembling Motion of Exciton-Polaritons Close to the Rashba-Dresselhaus Regime Wen, Wen Liang, Jie Xu, Huawen Jin, Feng Rubo, Yuri G. Liew, Timothy C. H. Su, Rui Mesoscale and Nanoscale Physics Optics We report the experimental emulation of trembling quantum motion, or Zitterbewegung, of exciton polaritons in a perovskite microcavity at room temperature. By introducing liquid crystal molecules into the microcavity, we achieve spinor states with synthetic Rashba-Dresselhaus spin-orbit coupling and tunable energy splitting. Under a resonant excitation, the polariton fluid exhibits clear trembling motion perpendicular to its flowing direction, accompanied by a unique spin pattern resembling interlocked fingers. Furthermore, leveraging on the sizable tunability of energy gaps by external electrical voltages, we observe the continuous transition of polariton Zitterbewegung from relativistic (small gaps) to non-relativistic (large gaps) regimes. Our findings pave the way for using exciton polaritons in the emulation of relativistic quantum physics. |
| title | Trembling Motion of Exciton-Polaritons Close to the Rashba-Dresselhaus Regime |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2405.19791 |