Vibrational quantum graphs and their application to the quantum dynamics of CH5.
Vibrational quantum graphs and their application to the quantum dynamics of CH5.
复制标题
振动量子图及其在 CH5 量子动力学中的应用。
DOI:
10.1039/c8cp03019g
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
A. Császár
中科院分区:
文献类型:
--
作者:
C. Fábri;A. Császár
The first application of quantum graphs to the vibrational quantum dynamics of molecules is reported. The quantum-graph model is applied to the quasistructural molecular ion CH5+, whose nuclear dynamics challenges the traditional understanding of chemical structures and molecular spectra. The vertices of the quantum graph represent versions of the equilibrium structure with distinct atom numbering, while the edges refer to collective nuclear motions transforming the versions of the equilibrium structure into one another. These definitions allow the mapping of the complex vibrational quantum dynamics of CH5+ onto the motion of a particle confined in a quantum graph. The quantum-graph model provides a simple understanding of the low-energy vibrational quantum dynamics of CH5+ and is able to reproduce the low-lying vibrational energy levels of CH5+ (and CD5+) with remarkable accuracy.
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