Extreme Loss Suppression and Wide Tunability of Dipolar Interactions in an Ultracold Molecular Gas
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918019237675008 |
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| author | Yuan, Weijun Zhang, Siwei Bigagli, Niccolò Kwak, Haneul Warner, Claire Karman, Tijs Stevenson, Ian Will, Sebastian |
| author_facet | Yuan, Weijun Zhang, Siwei Bigagli, Niccolò Kwak, Haneul Warner, Claire Karman, Tijs Stevenson, Ian Will, Sebastian |
| contents | Ultracold dipolar molecules hold great promise for the creation of novel quantum states of matter, but the realization of long-lived molecular bulk samples with strong dipole-dipole interactions has remained elusive. Here, we realize a collisionally stable gas of ultracold ground state molecules with a lifetime of several seconds. Utilizing double microwave dressing, we achieve an extreme suppression of inelastic two- and three-body losses by factors of more than 10,000 and 1,000, respectively. We find that losses remain suppressed across a wide range of dipole-dipole interactions, allowing the continuous tuning of the dipolar length from 0 to 1 um $\sim$ 20,000 $a_0$. Combined with the recent realization of Bose-Einstein condensation of dipolar molecules, our findings open the door to the exploration of strongly dipolar quantum liquids. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08773 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Extreme Loss Suppression and Wide Tunability of Dipolar Interactions in an Ultracold Molecular Gas Yuan, Weijun Zhang, Siwei Bigagli, Niccolò Kwak, Haneul Warner, Claire Karman, Tijs Stevenson, Ian Will, Sebastian Quantum Gases Atomic and Molecular Clusters Atomic Physics Quantum Physics Ultracold dipolar molecules hold great promise for the creation of novel quantum states of matter, but the realization of long-lived molecular bulk samples with strong dipole-dipole interactions has remained elusive. Here, we realize a collisionally stable gas of ultracold ground state molecules with a lifetime of several seconds. Utilizing double microwave dressing, we achieve an extreme suppression of inelastic two- and three-body losses by factors of more than 10,000 and 1,000, respectively. We find that losses remain suppressed across a wide range of dipole-dipole interactions, allowing the continuous tuning of the dipolar length from 0 to 1 um $\sim$ 20,000 $a_0$. Combined with the recent realization of Bose-Einstein condensation of dipolar molecules, our findings open the door to the exploration of strongly dipolar quantum liquids. |
| title | Extreme Loss Suppression and Wide Tunability of Dipolar Interactions in an Ultracold Molecular Gas |
| topic | Quantum Gases Atomic and Molecular Clusters Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2505.08773 |