Complete quantum coherent control of ultracold molecular collisions
Atomic Physics
2021-04-21 v1 Chemical Physics
Quantum Physics
Abstract
We show that quantum interference-based coherent control is a highly efficient tool for tuning ultracold molecular collision dynamics, and is free from the limitations of commonly used methods that rely on external electromagnetic fields. By varying {the relative populations and} phases of an initial coherent superpositions of degenerate molecular states, we demonstrate complete coherent control over integral scattering cross sections in the ultracold -wave regime of both the initial and final collision channels. The proposed control methodology is applied to ultracold O~+~O collisions, showing extensive control over -wave spin-exchange cross sections and product branching ratios over many orders of magnitude.
Keywords
Cite
@article{arxiv.2012.10269,
title = {Complete quantum coherent control of ultracold molecular collisions},
author = {Adrien Devolder and Paul Brumer and Timur V. Tscherbul},
journal= {arXiv preprint arXiv:2012.10269},
year = {2021}
}