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Unveiling the Physics Behind Hybrid Functionals

机译:揭示混合功能背后的物理

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摘要

We show that accurate exchange-correlation hybrid functionals give very physically optimized effective-correlation potentials, capable of correctly describing the quantum oscillations of atoms and molecules. Based on this analysis and on understanding the error cancellation between semilocal exchange and correlation functionals, we propose a very simple, semilocal correlation potential model compatible with the exact exchange of density functional theory, which performs remarkably well for charge densities and orbital energies.
机译:我们表明,准确的交换相关混合功能提供了非常物理优化的有效相关电位,能够正确地描述原子和分子的量子振荡。 基于该分析和了解半焦质交换和相关函数之间的错误取消,我们提出了一种非常简单的半透明相关潜在模型,与密度泛函理论的确切交换相兼容,这对于电荷密度和轨道能量非常好。

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