Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction

doi:10.1126/science.abf4205

GSTDTAP > 气候变化

DOI	10.1126/science.abf4205
	Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction
	Wentao Chen; Ransheng Wang; Daofu Yuan; Hailin Zhao; Chang Luo; Yuxin Tan; Shihao Li; Dong H. Zhang; Xingan Wang; Zhigang Sun; Xueming Yang
	2021-02-26
发表期刊	Science
出版年	2021
英文摘要	Despite decades of studies, the role of relativistic spin-orbit interactions in the dynamics of chemical reactions remains an intriguing topic. Using a high-resolution velocity map imaging crossed beams technique, Chen et al. observed an interesting pattern in the differential cross sections in the F + HD → HF + D reaction near the partial wave resonances (see the Perspective by Rakitzis). Further theoretical analysis showed that this pattern originates from quantum interference between spin-orbit split partial wave resonances with different total parities. The effect of the fine structure of the partial waves observed for this long known yet not completely explored three-atom system represents one more remarkable demonstration of the truly quantum nature of chemical reaction dynamics. Science , this issue p. [936][1]; see also p. [886][2] The effect of electron spin-orbit interactions on chemical reaction dynamics has been a topic of much research interest. Here we report a combined experimental and theoretical study on the effect of electron spin and orbital angular momentum in the F + HD → HF + D reaction. Using a high-resolution imaging technique, we observed a peculiar horseshoe-shaped pattern in the product rotational-state–resolved differential cross sections around the forward-scattering direction. The unusual dynamics pattern could only be explained properly by highly accurate quantum dynamics theory when full spin-orbit characteristics were considered. Theoretical analysis revealed that the horseshoe pattern was largely the result of quantum interference between spin-orbit split–partial-wave resonances with positive and negative parities, providing a distinctive example of how spin-orbit interaction can effectively influence reaction dynamics. [1]: /lookup/doi/10.1126/science.abf4205 [2]: /lookup/doi/10.1126/science.abg3184
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/315942
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Wentao Chen,Ransheng Wang,Daofu Yuan,et al. Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction[J]. Science,2021.
APA	Wentao Chen.,Ransheng Wang.,Daofu Yuan.,Hailin Zhao.,Chang Luo.,...&Xueming Yang.(2021).Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction.Science.
MLA	Wentao Chen,et al."Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction".Science (2021).