Coherent-control mechanisms of Penning and associative ionization in cold He(2 3S)-He(2 3S) reactive scattering

被引：0

作者：

Omiste, Juan J. ^{[1
]}

Tscherbul, Timur, V ^{[2
]}

Brumer, Paul ^{[3
,4
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim, Modulo 13, E-28049 Madrid, Spain

[2] Univ Nevada, Dept Phys, Reno, NV 89557 USA

[3] Univ Toronto, Chem Phys Theory Grp, Dept Chem, Toronto, ON M5S 3H6, Canada

[4] Univ Toronto, Ctr Quantum Informat & Quantum Control, Toronto, ON M5S 3H6, Canada

来源：

PHYSICAL REVIEW A | 2021年 / 103卷 / 05期

关键词：

ATOMS; BEAM;

D O I：

10.1103/PhysRevA.103.052809

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We explore coherent control of Penning and associative ionization in cold collisions of metastable He*(2 S-3) atoms via the quantum interference between different states of the He*(2) collision complex. By tuning the preparation coefficients of the initial atomic spin states, we can benefit from the quantum interference between molecular channels to maximize or minimize the cross sections for Penning and associative ionization. In particular, we find that we can enhance the ionization ratio by 30% in the cold regime. This work is significant for the coherent control of chemical reactions in the cold and ultracold regimes.

引用

页数：12

Coherent-control mechanisms of Penning and associative ionization in cold He*(2 3S)-He*(2 3S) reactive scattering

Coherent-control mechanisms of Penning and associative ionization in cold He(2 3S)-He(2 3S) reactive scattering