Formation of ultracold 39K133Cs molecules via Feshbach optimized photoassociation

A Feshbach optimized photoassociation (FOPA) process for preparing ultracold excited-state 39K133Cs molecules is studied theoretically. Under the joint action of the magnetic field and short laser pulse, the colliding atoms in a superposition state composed of eight hyperfine components are converte...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2020-05, Vol.152 (17), p.174307-174307
Main Authors: Hai, Yang, Li, Li-Hang, Li, Jing-Lun, Wang, Gao-Ren, Cong, Shu-Lin
Format: Article
Language:English
Subjects:
Excitation
Interference
Resonance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A Feshbach optimized photoassociation (FOPA) process for preparing ultracold excited-state 39K133Cs molecules is studied theoretically. Under the joint action of the magnetic field and short laser pulse, the colliding atoms in a superposition state composed of eight hyperfine components are converted into a molecule in the vibrational level of the excited state via two transition processes, the transition between singlet states and the transition between triplet states. The association efficiency can be significantly enhanced by taking advantage of Feshbach resonance. At different resonance positions, different hyperfine components of the superposition state dominate over the FOPA process, and the quantum interference displays different behaviors. Compared with the FOPA process only including a single hyperfine component, the quantum interference in the FOPA process containing all hyperfine components has a visible effect on the association efficiency.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0001794