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arXiv 0801.3439physics.chem-ph
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约化密度矩阵泛函理论的基准计算

Benchmark calculations for reduced density-matrix functional theory

N. N. Lathiotakis, Miguel A. L. Marques

摘要:

约化密度矩阵泛函理论(RDMFT)是研究电子关联问题的一种新方法。像标准的密度泛函理论一样,它包含一个未知的交换相关泛函,在过去的几年里已经提出了几个近似。在这篇文章中,我们基准的一些这些泛函在一个扩展的一组分子的总能量和原子化能量。我们的研究结果表明,最新的RDMFT泛函给出了非常令人满意的结果相比,更涉及量子化学和密度泛函方法。

英文摘要:

Reduced density-matrix functional theory (RDMFT) is a promising alternative approach to the problem of electron correlation. Like standard density functional theory, it contains an unknown exchange-correlation functional, for which several approximations have been proposed in the last years. In this article, we benchmark some of these functionals in an extended set of molecules with respect to total and atomization energies. Our results show that the most recent RDMFT functionals give very satisfactory results compared to more involved quantum chemistry and density functional approaches.

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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