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Chin. Phys. B, 2020, Vol. 29(2): 023103    DOI: 10.1088/1674-1056/ab6314
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Theoretical analysis of the coupling between Feshbach states and hyperfine excited states in the creation of 23Na40K molecule

Ya-Xiong Liu(刘亚雄)1,2, Bo Zhao(赵博)1,2
1 Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
2 Shanghai Branch, CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
Abstract  We present an intensive study of the coupling between different Feshbach states and the hyperfine levels of the excited states in the adiabatic creation of 23Na40K ground-state molecules. We use coupled-channel method to calculate the wave function of the Feshbach molecules, and give the short-range wave function of triplet component. The energies of the hyperfine excited states and the coupling strength between the Feshbach states and the hyperfine excited states are calculated. Our results can be used to prepare a specific hyperfine level of the rovibrational ground state to study the ultracold collisions involving molecules.
Keywords:  Feshbach resonance      stimulated Raman adiabatic passage      ultracold molecule  
Received:  28 October 2019      Revised:  13 December 2019      Accepted manuscript online: 
PACS:  31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)  
  31.15.aj (Relativistic corrections, spin-orbit effects, fine structure; hyperfine structure)  
  33.15.Pw (Fine and hyperfine structure)  
  67.85.-d (Ultracold gases, trapped gases)  
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0306502), the National Natural Science Foundation of China (Grant Nos. 11521063 and 11904355), and the Fund from the Chinese Academy of Sciences (CAS).
Corresponding Authors:  Bo Zhao     E-mail:  bozhao@ustc.edu.cn

Cite this article: 

Ya-Xiong Liu(刘亚雄), Bo Zhao(赵博) Theoretical analysis of the coupling between Feshbach states and hyperfine excited states in the creation of 23Na40K molecule 2020 Chin. Phys. B 29 023103

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