Details
| Original language | English |
|---|---|
| Pages (from-to) | 7872–7883 |
| Number of pages | 12 |
| Journal | Journal of Physical Chemistry A |
| Volume | 127 |
| Issue number | 38 |
| Early online date | 18 Sept 2023 |
| Publication status | Published - 28 Sept 2023 |
Abstract
A model for photoassociation of ultracold atoms and molecules is presented and applied to the case of 39K and 23Na39K bosonic particles. The model relies on the assumption that photoassociation is dominated by long-range atom-molecule interactions well outside the chemical bond region. The frequency of the photoassociation laser is chosen close to a bound-bound rovibronic transition from the X1Σ+ ground state toward the metastable b3Π lowest excited state of 23Na39K, allowing us to neglect any other excitation, which could hinder the photoassociation detection. The energy level structure of the long-range 39K···23Na39K excited super-dimer is computed in the space-fixed frame by solving coupled-channel equations, involving the coupling between the 23Na39K internal rotation and the mechanical rotation of the super-dimer complex. A quite rich structure is obtained, and the corresponding photoassociation rates are presented. Other possible photoassociation transitions are discussed in the context of the proposed model.
ASJC Scopus subject areas
- Chemistry(all)
- Physical and Theoretical Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Physical Chemistry A, Vol. 127, No. 38, 28.09.2023, p. 7872–7883.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modeling Photoassociative Spectra of Ultracold NaK + K
AU - Shammout, Baraa
AU - Karpa, Leon
AU - Ospelkaus, Silke
AU - Tiemann, Eberhard
AU - Dulieu, Olivier
N1 - Funding Information: We gratefully acknowledge Dr Romain Vexiau for sharing his calculations on NaK transition dipole moments and Charbel Karam for his support in using MFGH code. B. S., L. K, and S. O. gratefully acknowledge financial support from Germany’s Excellence Strategy─EXC-2123 QuantumFrontiers─390837967, the Deutsche Forschungsgemeinschaft (DFG) through CRC 1227 (DQ-mat), project A03, and the European Research Council through the ERC Consolidator grant 101045075 TRITRAMO.
PY - 2023/9/28
Y1 - 2023/9/28
N2 - A model for photoassociation of ultracold atoms and molecules is presented and applied to the case of 39K and 23Na39K bosonic particles. The model relies on the assumption that photoassociation is dominated by long-range atom-molecule interactions well outside the chemical bond region. The frequency of the photoassociation laser is chosen close to a bound-bound rovibronic transition from the X1Σ+ ground state toward the metastable b3Π lowest excited state of 23Na39K, allowing us to neglect any other excitation, which could hinder the photoassociation detection. The energy level structure of the long-range 39K···23Na39K excited super-dimer is computed in the space-fixed frame by solving coupled-channel equations, involving the coupling between the 23Na39K internal rotation and the mechanical rotation of the super-dimer complex. A quite rich structure is obtained, and the corresponding photoassociation rates are presented. Other possible photoassociation transitions are discussed in the context of the proposed model.
AB - A model for photoassociation of ultracold atoms and molecules is presented and applied to the case of 39K and 23Na39K bosonic particles. The model relies on the assumption that photoassociation is dominated by long-range atom-molecule interactions well outside the chemical bond region. The frequency of the photoassociation laser is chosen close to a bound-bound rovibronic transition from the X1Σ+ ground state toward the metastable b3Π lowest excited state of 23Na39K, allowing us to neglect any other excitation, which could hinder the photoassociation detection. The energy level structure of the long-range 39K···23Na39K excited super-dimer is computed in the space-fixed frame by solving coupled-channel equations, involving the coupling between the 23Na39K internal rotation and the mechanical rotation of the super-dimer complex. A quite rich structure is obtained, and the corresponding photoassociation rates are presented. Other possible photoassociation transitions are discussed in the context of the proposed model.
UR - http://www.scopus.com/inward/record.url?scp=85174080240&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2303.11891
DO - 10.48550/arXiv.2303.11891
M3 - Article
C2 - 37718898
AN - SCOPUS:85174080240
VL - 127
SP - 7872
EP - 7883
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
SN - 1089-5639
IS - 38
ER -