结合本地范围分离和本地混合物:从一个功能中获得良好的能量和自身价值的追求中的一步
Moritz Brütting1, Hilke Bahmann2, Stephan Kümmel1
1Theoretical Physics IV, University of Bayreuth, 95440 Bayreuth, Germany.
The journal of physical chemistry. A
|June 21, 2024
概括
这项研究探讨了密度函数理论中的高级混合函数,以解决"可观测的困境". 结合局部范围分离和局部混合物,旨在同时准确预测绑定能量和电子固有值.
科学领域:
- 计算化学是一种计算化学.
- 量子化学是一种量子化学.
- 材料科学 是一种材料科学.
背景情况:
- 混合函数,结合半局部和福克交换,在密度函数理论中是成功的.
- 分离范围和本地杂交物是有希望的,但面临着一个"可观察到的困境".
研究的目的:
- 为了克服密度函数理论中的"可观察到的困境".
- 开发能够准确预测约束能量和可解释的固有值的函数.
主要方法:
- 结合本地范围分离和本地混合概念.
- 对于新功能来说,使用约束引导开发.
主要成果:
- 拟议的方法旨在统一准确的绑定能量和固有值预测.
- 解决了长期以来在开发通用准确的函数的挑战.
结论:
- 整合本地范围分离和本地混合物提供了一条解决"可观测困境"的途径.
- 该策略指导开发更强大,更准确的密度函数近似值.
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