Trajectory-guided configuration interaction simulations of multidimensional quantum dynamics.
Trajectory-guided configuration interaction simulations of multidimensional quantum dynamics.
复制标题
多维量子动力学的轨迹引导构型相互作用模拟。
DOI:
10.1063/1.3681167
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
S. Habershon
中科院分区:
文献类型:
--
作者:
S. Habershon
We propose an approach to modelling multidimensional quantum systems which uses direct-dynamics trajectories to guide wavefunction propagation. First, trajectory simulations are used to generate a sample of dynamically relevant configurations on the potential energy surface (PES). Second, the sampled configurations are used to construct an n-mode representation of the PES using a greedy algorithm. Finally, the time-dependent Schrödinger equation is solved using a configuration interaction expansion of the wavefunction, with individual basis functions derived directly from the 1-mode contributions to the n-mode PES. This approach is successfully demonstrated by application to a 20-dimensional benchmark problem describing tunnelling in the presence of coupled degrees of freedom.
影响因子:
1.7
作者:
G. Worth;M. Robb;B. Lasorne
通讯作者:
G. Worth;M. Robb;B. Lasorne