超低温下反应与碰撞的量子控制

Quantum control of reactions and collisions at ultralow temperatures.

作者信息

Zhao Bo, Pan Jian-Wei

机构信息

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.

Shanghai Branch, CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.

出版信息

Chem Soc Rev. 2022 Mar 7;51(5):1685-1701. doi: 10.1039/d1cs01040a.

DOI:10.1039/d1cs01040a

PMID:35169822

Abstract

At temperatures close to absolute zero, the molecular reactions and collisions are dominantly governed by quantum mechanics. Remarkable quantum phenomena such as quantum tunneling, quantum threshold behavior, quantum resonances, quantum interference, and quantum statistics are expected to be the main features in ultracold reactions and collisions. Ultracold molecules offer great opportunities and challenges in the study of these intriguing quantum phenomena in molecular processes. In this article, we review the recent progress in the preparation of ultracold molecules and the study of ultracold reactions and collisions using ultracold molecules. We focus on the controlled ultracold chemistry and the scattering resonances at ultralow temperatures. The challenges in understanding the complex ultracold reactions and collisions are also discussed.

摘要

在接近绝对零度的温度下，分子反应和碰撞主要由量子力学支配。诸如量子隧穿、量子阈值行为、量子共振、量子干涉和量子统计等显著的量子现象有望成为超冷反应和碰撞中的主要特征。超冷分子在研究分子过程中这些有趣的量子现象方面提供了巨大的机遇和挑战。在本文中，我们回顾了超冷分子制备以及使用超冷分子进行超冷反应和碰撞研究的最新进展。我们重点关注可控的超冷化学以及超低温下的散射共振。同时也讨论了理解复杂的超冷反应和碰撞所面临的挑战。