Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2109.02602 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866929391272984576 |
|---|---|
| author | Quéméner, Goulven Croft, James F. E. Bohn, John L. |
| author_facet | Quéméner, Goulven Croft, James F. E. Bohn, John L. |
| contents | Recent experiments on ultracold non-reactive dipolar molecules have observed high two-body losses, even though these molecules can undergo neither inelastic, nor reactive (as they are in their absolute ground state), nor light-assisted collisions (if they are measured in the dark). In the presence of an electric field these losses seem to be near universal (the probability of loss at short-range is near unity) while in the absence of it the losses seem non-universal. To explain these observations we propose a simple model based on the mixing effect of an electric field on the states of the two diatomic molecules at long-range and on the density-of-states of the tetramer complex formed at short-range, believed to be responsible for the losses. We apply our model to collisions of ground-state molecules of endothermic systems, of current experimental interest. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2109_02602 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Electric field dependence of complex-dominated ultracold molecular collisions Quéméner, Goulven Croft, James F. E. Bohn, John L. Atomic Physics Quantum Physics Recent experiments on ultracold non-reactive dipolar molecules have observed high two-body losses, even though these molecules can undergo neither inelastic, nor reactive (as they are in their absolute ground state), nor light-assisted collisions (if they are measured in the dark). In the presence of an electric field these losses seem to be near universal (the probability of loss at short-range is near unity) while in the absence of it the losses seem non-universal. To explain these observations we propose a simple model based on the mixing effect of an electric field on the states of the two diatomic molecules at long-range and on the density-of-states of the tetramer complex formed at short-range, believed to be responsible for the losses. We apply our model to collisions of ground-state molecules of endothermic systems, of current experimental interest. |
| title | Electric field dependence of complex-dominated ultracold molecular collisions |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2109.02602 |