Double Microwave Shielding
Fuente:
arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866918383568551936 |
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| author | Karman, Tijs Bigagli, Niccolò Yuan, Weijun Zhang, Siwei Stevenson, Ian Will, Sebastian |
| author_facet | Karman, Tijs Bigagli, Niccolò Yuan, Weijun Zhang, Siwei Stevenson, Ian Will, Sebastian |
| contents | We develop double microwave shielding, which has recently enabled evaporative cooling to the first Bose-Einstein condensate of polar molecules [Bigagli et al., Nature 631, 289 (2024)]. Two microwave fields of different frequency and polarization are employed to effectively shield polar molecules from inelastic collisions and three-body recombination. Here, we describe in detail the theory of double microwave shielding. We demonstrate that double microwave shielding effectively suppresses two- and three-body losses. Simultaneously, dipolar interactions and the scattering length can be flexibly tuned, enabling comprehensive control over interactions in ultracold gases of polar molecules. We show that this approach works universally for a wide range of molecules. This opens the door to studying many-body physics with strongly interacting dipolar quantum matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_08095 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Double Microwave Shielding Karman, Tijs Bigagli, Niccolò Yuan, Weijun Zhang, Siwei Stevenson, Ian Will, Sebastian Quantum Gases Atomic and Molecular Clusters Atomic Physics Chemical Physics Quantum Physics We develop double microwave shielding, which has recently enabled evaporative cooling to the first Bose-Einstein condensate of polar molecules [Bigagli et al., Nature 631, 289 (2024)]. Two microwave fields of different frequency and polarization are employed to effectively shield polar molecules from inelastic collisions and three-body recombination. Here, we describe in detail the theory of double microwave shielding. We demonstrate that double microwave shielding effectively suppresses two- and three-body losses. Simultaneously, dipolar interactions and the scattering length can be flexibly tuned, enabling comprehensive control over interactions in ultracold gases of polar molecules. We show that this approach works universally for a wide range of molecules. This opens the door to studying many-body physics with strongly interacting dipolar quantum matter. |
| title | Double Microwave Shielding |
| topic | Quantum Gases Atomic and Molecular Clusters Atomic Physics Chemical Physics Quantum Physics |
| url | https://arxiv.org/abs/2501.08095 |