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arXiv physics/0605024physics.chem-ph
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局域密度近似对长程或短程能量泛函?

Local density approximation for long-range or for short-range energy functionals?

Julien Toulouse, Andreas Savin

摘要:

密度泛函方法被开发出来,其中库仑电子-电子相互作用被分成长程和短程部分。在这样的方法中,一项使用传统的密度泛函近似计算,如局部密度近似。本文试图通过比较局域密度近似的准确性与He原子的精确结果,来阐明最佳的方法。

英文摘要:

Density functional methods were developed, in which the Coulomb electron-electron interaction is split into a long- and a short-range part. In such methods, one term is calculated using traditional density functional approximations, like the local density approximation. The present paper tries to shed some light upon the best way to do it by comparing the accuracy of the local density approximation with accurate results for the He atom.

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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