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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Accesso online: | https://arxiv.org/abs/2405.14466 |
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| _version_ | 1866916257628946432 |
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| author | Eid, Roy Hammond, Alfred Lavoine, Lucas Bourdel, Thomas |
| author_facet | Eid, Roy Hammond, Alfred Lavoine, Lucas Bourdel, Thomas |
| contents | We realize textbook experiments on Bose-Einstein condensate tunnelling through thin repulsive potential barriers. In particular, we demonstrate atom tunnelling though a single optical barrier in the quantum scattering regime where the De Broglie wavelength of the atoms is larger than the barrier width. Such a beam splitter can be used for atom interferometry and we study the case of two barriers creating an atomic Fabry-P{é}rot cavity. Technically, the velocity of the atoms is reduced thanks to the use of a 39K Bose-Einstein condensate with no interactions. The potential barriers are created optically and their width is tunable thanks to the use of a digital micro-mirror device. In addition, our scattering experiments enable in-situ characterization of the optical aberrations of the barrier optical system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_14466 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ultra-cold atoms quantum tunneling through single and double optical barriers Eid, Roy Hammond, Alfred Lavoine, Lucas Bourdel, Thomas Atomic Physics Quantum Physics We realize textbook experiments on Bose-Einstein condensate tunnelling through thin repulsive potential barriers. In particular, we demonstrate atom tunnelling though a single optical barrier in the quantum scattering regime where the De Broglie wavelength of the atoms is larger than the barrier width. Such a beam splitter can be used for atom interferometry and we study the case of two barriers creating an atomic Fabry-P{é}rot cavity. Technically, the velocity of the atoms is reduced thanks to the use of a 39K Bose-Einstein condensate with no interactions. The potential barriers are created optically and their width is tunable thanks to the use of a digital micro-mirror device. In addition, our scattering experiments enable in-situ characterization of the optical aberrations of the barrier optical system. |
| title | Ultra-cold atoms quantum tunneling through single and double optical barriers |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2405.14466 |