Scholarlink

<p>The wave-like nature of quantum particles enables interference effects that can influence the outcomes of chemical reactions; however, most have been observed to occur from two spatially distinct reaction pathways, analogous to Young’s double-slit experiment. Here we report detailed experiments on HOD photodissociation that reveal excitation-wavelength-dependent variations in the rotational state distribution of OD(X) product fragments. Full-dimensional quantum calculations reproduce the experimental observations semi-quantitatively, and our analysis attributes this behaviour to dynamical interferences between direct and indirect dissociation paths that both traverse the same conical intersection seam at collinear H–OD geometries, an interference analogous to ‘single-slit diffraction’ in optics. These observed dynamical signatures demonstrate that interference can manifest even within a single reaction pathway, suggesting a quantum mechanical means to control conical intersection-mediated nonadiabatic dynamics.</p><p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Quantum interference between direct and indirect reaction paths in the photodissociation of HOD

  • 期刊论文

  • 发表日期：

    2026年3月3日

查看全文
  • Junyan Wang,
  • Zijie Luo,
  • Linsen Zhou,
  • Xixi Hu,
  • Zhenxing Li,
  • Hua Guo,
  • Shanyu Han,
  • Daiqian Xie,
  • Kaijun Yuan,
  • Xueming Yang

摘要

The wave-like nature of quantum particles enables interference effects that can influence the outcomes of chemical reactions; however, most have been observed to occur from two spatially distinct reaction pathways, analogous to Young’s double-slit experiment. Here we report detailed experiments on HOD photodissociation that reveal excitation-wavelength-dependent variations in the rotational state distribution of OD(X) product fragments. Full-dimensional quantum calculations reproduce the experimental observations semi-quantitatively, and our analysis attributes this behaviour to dynamical interferences between direct and indirect dissociation paths that both traverse the same conical intersection seam at collinear H–OD geometries, an interference analogous to ‘single-slit diffraction’ in optics. These observed dynamical signatures demonstrate that interference can manifest even within a single reaction pathway, suggesting a quantum mechanical means to control conical intersection-mediated nonadiabatic dynamics.