Three-Body Recombination of Ultracold Microwave-Shielded Polar Molecules
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909921644118016 |
|---|---|
| author | Stevenson, Ian Singh, Shayamal Elkamshishy, Ahmed Bigagli, Niccoló Yuan, Weijun Zhang, Siwei Greene, Chris H. Will, Sebastian |
| author_facet | Stevenson, Ian Singh, Shayamal Elkamshishy, Ahmed Bigagli, Niccoló Yuan, Weijun Zhang, Siwei Greene, Chris H. Will, Sebastian |
| contents | A combined experimental and theoretical study is carried out on the three-body recombination process in a gas of microwave-shielded polar molecules. For ground-state polar molecules dressed with a strong microwave field, field-linked bound states can appear in the intermolecular potential. We model three-body recombination into such bound states using classical trajectory calculations. Our results show that recombination can explain the enhanced loss rates observed at small microwave detunings in trapped samples of bosonic NaCs [Bigagli, $\textit{et al.}$, Nat. Phys. $\textbf{19}$ 1579-1584 (2023)]. Specifically, our calculations reproduce the experimentally measured three-body loss rates across a wide range of microwave Rabi couplings, detunings, and temperatures. This work suggests that for bosonic shielded molecular systems in which the two-body loss is sufficiently suppressed and a field-linked bound state is present, the dominant loss process will be three-body recombination. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_04901 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Three-Body Recombination of Ultracold Microwave-Shielded Polar Molecules Stevenson, Ian Singh, Shayamal Elkamshishy, Ahmed Bigagli, Niccoló Yuan, Weijun Zhang, Siwei Greene, Chris H. Will, Sebastian Quantum Gases Atomic Physics Quantum Physics A combined experimental and theoretical study is carried out on the three-body recombination process in a gas of microwave-shielded polar molecules. For ground-state polar molecules dressed with a strong microwave field, field-linked bound states can appear in the intermolecular potential. We model three-body recombination into such bound states using classical trajectory calculations. Our results show that recombination can explain the enhanced loss rates observed at small microwave detunings in trapped samples of bosonic NaCs [Bigagli, $\textit{et al.}$, Nat. Phys. $\textbf{19}$ 1579-1584 (2023)]. Specifically, our calculations reproduce the experimentally measured three-body loss rates across a wide range of microwave Rabi couplings, detunings, and temperatures. This work suggests that for bosonic shielded molecular systems in which the two-body loss is sufficiently suppressed and a field-linked bound state is present, the dominant loss process will be three-body recombination. |
| title | Three-Body Recombination of Ultracold Microwave-Shielded Polar Molecules |
| topic | Quantum Gases Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2407.04901 |