Ultracold charged atom-dimer collisions: State-selective charge exchange and three-body recombination

被引：0

作者：

Pandey, A. ^{[1
]}

Vexiau, R. ^{[1
]}

Marcassa, L. G. ^{[2
]}

Dulieu, O. ^{[1
]}

Bouloufa-Maafa, N. ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, Lab Aime Cotton, F-91405 Orsay, France

[2] Univ Sao Paulo, Inst Fis Sao Carlos, Caixa Postal 369, BR-13560970 Sao Carlos, SP, Brazil

来源：

PHYSICAL REVIEW RESEARCH | 2024年 / 6卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

POTENTIAL-ENERGY SURFACES; LOWEST ELECTRONIC STATES; AB-INITIO; CONICAL INTERSECTIONS; QUANTUM-CHEMISTRY; LI; SIMULATION; CLUSTERS; SPECTRA; MODEL;

D O I：

10.1103/PhysRevResearch.6.043010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on an accurate determination of the potential energy surfaces of Rb+ 3 correlated to its first asymptotic limit Rb+ + Rb(5s) + Rb(5s), we identify the presence of intersections of a pair of singlet and triplet surfaces over all interparticle distances, leading to Jahn-Teller (JT) couplings. We elaborate scenarios for charge exchange between ultracold charged atom-dimer complex (Rb + Rb+ 2 or Rb+ + Rb2), predicting a strong selectivity on the preparation of the initial state of the dimer. We also demonstrate that the JT couplings must drive the threebody recombination (TBR) of Rb+, Rb, and Rb at ultracold energies. Using the current analysis, we provide a consistent picture of the TBR experiments performed in ion-atom hybrid Rb samples. We also demonstrate the presence of JT coupling as a general phenomenon in the singly charged homonuclear alkali triatomic systems.

引用

页数：12