Measurement of the $s$-wave scattering length between metastable helium isotopes
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arXiv
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| Format: | Preprint |
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2024
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| author | Kannan, S. Athreya, Y. S. Abbas, A. H. Yan, X. T. Hodgman, S. S. Truscott, A. G. |
| author_facet | Kannan, S. Athreya, Y. S. Abbas, A. H. Yan, X. T. Hodgman, S. S. Truscott, A. G. |
| contents | We report the first experimental determination of the interspecies $s$-wave scattering length\,($a_{34}$) between the $2\,^3S_1\,(F=3/2,m_F=3/2)$ state of $^3$He$^*$ and the $2\,^3S_1\,(m_J=1)$ state of $^4$He$^*$. We determine $a_{34}$ by inducing oscillations in a trapped Bose-Einstein condensate of $^4$He$^*$ and measuring the damping rate of these oscillations due to the presence of $^3$He$^*$ atoms. The deduced value of $a_{34}=29\pm3$\,nm is in good agreement with theoretical predictions. The knowledge of this scattering length is important for many fundamental experiments between these helium isotopes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_04279 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Measurement of the $s$-wave scattering length between metastable helium isotopes Kannan, S. Athreya, Y. S. Abbas, A. H. Yan, X. T. Hodgman, S. S. Truscott, A. G. Quantum Gases Atomic Physics We report the first experimental determination of the interspecies $s$-wave scattering length\,($a_{34}$) between the $2\,^3S_1\,(F=3/2,m_F=3/2)$ state of $^3$He$^*$ and the $2\,^3S_1\,(m_J=1)$ state of $^4$He$^*$. We determine $a_{34}$ by inducing oscillations in a trapped Bose-Einstein condensate of $^4$He$^*$ and measuring the damping rate of these oscillations due to the presence of $^3$He$^*$ atoms. The deduced value of $a_{34}=29\pm3$\,nm is in good agreement with theoretical predictions. The knowledge of this scattering length is important for many fundamental experiments between these helium isotopes. |
| title | Measurement of the $s$-wave scattering length between metastable helium isotopes |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2408.04279 |