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arXiv 1106.0434cond-mat.mtrl-sci
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用杂化泛函计算固体能带结构的快速可靠方法

A fast and reliable method for the calculation of band structure of solids with hybrid functionals

Fabien Tran

摘要:

本文提出了计算固体电子结构的混合方法框架内的一个简单近似。通过只考虑在半局域轨道的基础上计算的微扰算子(Hartree-Fock交换减去半局域交换)的对角元素,计算时间大大减少,同时保持了在没有任何近似的情况下应用混合泛函所获得的结果的准确性。

英文摘要:

A simple approximation within the framework of the hybrid methods for the calculation of the electronic structure of solids is presented. By considering only the diagonal elements of the perturbation operator (Hartree-Fock exchange minus semilocal exchange) calculated in the basis of the semilocal orbitals, the computational time is drastically reduced, while keeping the accuracy of the results obtained with hybrid functionals when applied without any approximations.

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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