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arXiv 2009.11249physics.chem-ph
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金属表面附近多电子分子的电子结构

Electronic Structure for Multielectronic Molecules Near a Metal Surface

Junhan Chen, Zuxin Jin, Wenjie Dou, Joseph Subotnik

摘要:

我们分析了一个模型问题,代表一个多电子分子坐在金属表面。与数值重整化群理论(NRG)相比,我们用一个简化的组态相互作用哈密顿量,可以提取出非常精确的基态波函数--即使在弱的金属-分子耦合强度和强的分子内电子-电子排斥的限制下.此外,我们还提取了似乎有意义的激发能。我们的研究结果应该奠定了基础,为未来的{ \em ab initio}研究的电荷转移过程和键的建立/断裂过程的金属表面。

英文摘要:

We analyze a model problem representing a multi-electronic molecule sitting on a metal surface. Working with a reduced configuration interaction Hamiltonian, we show that one can extract very accurate ground state wavefunctions as compared with the numerical renormalization group theory (NRG) -- even in the limit of weak metal-molecule coupling strength but strong intramolecular electron-electron repulsion. Moreover, we extract what appear to be meaningful excitation energies as well. Our findings should lay the groundwork for future {\em ab initio} studies of charge transfer processes and bond making/breaking processes on metal surfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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