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量子化学:提升关键模拟方法的精度,迈向通用密度泛函
密度泛函理论(Density Functional Theory, DFT)相对简单——其计算所需的计算资源与电子数量的立方成正比,而不是像量子多体计算那样随电子数量呈指数增长。DFT 理论不追踪每个电子的运动,而是计算电子密度——即电子在空间中最可能出现的位置。因此,DFT 可以用于模拟数百个原子的行为。
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