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Quantum Chemistry

Complete quantum coherent control of ultracold molecular collisions

arXiv
Authors: Adrien Devolder, Paul Brumer, Timur V. Tscherbul

Year

2020

Paper ID

18282

Status

Preprint

Abstract Read

~2 min

Abstract Words

103

Citations

N/A

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 s-wave regime of both the initial and final collision channels. The proposed control methodology is applied to ultracold O2 + O2 collisions, showing extensive control over s-wave spin-exchange cross sections and product branching ratios over many orders of magnitude.

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  • 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...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2012.10269 [2] arXiv https://arxiv.org/abs/2012.10269 [3] Publisher https://arxiv.org/abs/2012.10269

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