Time-domain interferometry of electron weak localization through terahertz nonlinear response
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866918087957151744 |
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| author | Li, Zi-Long Li, Xiao-Hui Wan, Yuan |
| author_facet | Li, Zi-Long Li, Xiao-Hui Wan, Yuan |
| contents | We study theoretically the nonlinear optical response of disordered electrons in the regime of weak (anti)localization. Our analytical and numerical calculations reveal that, in orthogonal/symplectic class systems, two consecutive, phase coherent optical pulses generates an electric current echo that appears after the second pulse, and at a time equal to the pulse delay time. The current echo reflects the quantum interference between a self-intersecting electron path and its time reversal partner, and, therefore, provide a time-domain interferometry of weak (anti)localization. Our results can be potentially tested on disordered metal films by using terahertz two-dimensional coherent spectroscopy or ultrafast transport measurements. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2404_16867 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Time-domain interferometry of electron weak localization through terahertz nonlinear response Li, Zi-Long Li, Xiao-Hui Wan, Yuan Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks We study theoretically the nonlinear optical response of disordered electrons in the regime of weak (anti)localization. Our analytical and numerical calculations reveal that, in orthogonal/symplectic class systems, two consecutive, phase coherent optical pulses generates an electric current echo that appears after the second pulse, and at a time equal to the pulse delay time. The current echo reflects the quantum interference between a self-intersecting electron path and its time reversal partner, and, therefore, provide a time-domain interferometry of weak (anti)localization. Our results can be potentially tested on disordered metal films by using terahertz two-dimensional coherent spectroscopy or ultrafast transport measurements. |
| title | Time-domain interferometry of electron weak localization through terahertz nonlinear response |
| topic | Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2404.16867 |