Coherent backscattering and coherent forward scattering effects in variations of the random quantum kicked rotor
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866917944989057024 |
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| author | Thomas, Hugo Hébraud, Julien Georgeot, Bertrand Lemarié, Gabriel Miniatura, Christian Giraud, Olivier |
| author_facet | Thomas, Hugo Hébraud, Julien Georgeot, Bertrand Lemarié, Gabriel Miniatura, Christian Giraud, Olivier |
| contents | We investigate coherent multiple scattering effects in the random quantum kicked rotor model. By changing the starting time of the Floquet period, two new classes of models can be introduced that exhibit similar interference structures. For one of the two classes, these structures appear on top of a non-trivial background, which we describe in detail. Its origin is identified and an approximate analytical formula is proposed. The asymptotic contrast profile, as well as the height of the coherent backscattering and the coherent forward scattering peaks, are also analyzed. Our findings are relevant to provide an interpretation of cold atom experiments aiming at observing such interference effects with matter waves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_02517 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Coherent backscattering and coherent forward scattering effects in variations of the random quantum kicked rotor Thomas, Hugo Hébraud, Julien Georgeot, Bertrand Lemarié, Gabriel Miniatura, Christian Giraud, Olivier Quantum Physics Quantum Gases We investigate coherent multiple scattering effects in the random quantum kicked rotor model. By changing the starting time of the Floquet period, two new classes of models can be introduced that exhibit similar interference structures. For one of the two classes, these structures appear on top of a non-trivial background, which we describe in detail. Its origin is identified and an approximate analytical formula is proposed. The asymptotic contrast profile, as well as the height of the coherent backscattering and the coherent forward scattering peaks, are also analyzed. Our findings are relevant to provide an interpretation of cold atom experiments aiming at observing such interference effects with matter waves. |
| title | Coherent backscattering and coherent forward scattering effects in variations of the random quantum kicked rotor |
| topic | Quantum Physics Quantum Gases |
| url | https://arxiv.org/abs/2503.02517 |