V2EX pseudowavefunction

Pseudowavefunction

定义 / Definition

pseudowavefunction(也常写作 pseudo-wavefunction):在量子力学与计算材料学(尤其是赝势/PAW 等方法)中使用的“赝波函数”。它通常被设计为在原子核附近更平滑、计算更高效,同时在价电子相关的区域与真实(全电子)波函数保持一致或可一一对应。该词多用于第一性原理计算语境。

发音 / Pronunciation

/sudowevfkn/

例句 / Examples

The code outputs a pseudowavefunction for each valence state.
该程序会为每个价态输出一个赝波函数。

In the pseudopotential framework, the pseudowavefunction is constructed to match the all-electron wavefunction outside a chosen core radius while remaining smooth near the nucleus to reduce the plane-wave cutoff.
在赝势框架中,赝波函数被构造为在选定的芯半径之外与全电子波函数一致,同时在原子核附近保持平滑,以降低平面波截断能的需求。

词源 / Etymology

由 **pseudo-**(“伪的、拟的、赝的”)+ wavefunction(“波函数”)构成。该术语在固体物理与量子化学的数值计算发展中广泛使用,强调它是为计算便而引入、但在关键物理性质上与真实波函数等价或可映射的“替代表示”。

相关词 / Related Words

文学作品与经典著作示例 / Notable Works

  • Peter E. Blchl, “Projector Augmented-Wave Method”(1994)讨论可与全电子波函数相关联的“赝”表示(常涉及赝波函数概念)。
  • David Vanderbilt, “Soft Self-Consistent Pseudopotentials in a Generalized Eigenvalue Formalism”(1990)超软赝势方法中常使用“pseudo-wavefunction/赝波函数”的表述。
  • Richard M. Martin, Electronic Structure: Basic Theory and Practical Methods(书籍)电子结构计算章节中系统介绍赝势与相关波函数表示。
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