V2EX pauli repulsion

Pauli Repulsion

释义 Definition

泡利排斥(Pauli repulsion):量子力学中由泡利不相容原理引起的有效“排斥”效应。当两个电子(尤其是同自旋电子)被迫占据过于相似的量子态、电子云重叠过大时,体系能量升高,表现为短程强烈排斥;它是原子/分子在很近距离不易“挤在一起”的重要原因之一(并非经典意义的库仑斥力)。

例句 Examples

At very short distances, Pauli repulsion prevents atoms from collapsing into each other.
在非常短的距离下,泡利排斥会阻止原子相互“塌缩”到一起。

In molecular modeling, the steep rise of the potential energy curve at close range is often attributed to Pauli repulsion from overlapping electron densities.
在分子建模中,势能曲线在近距离处陡然上升,常被归因于电子密度重叠导致的泡利排斥。

发音 Pronunciation (IPA)

/pali rpln/

词源 Etymology

Pauli 来自奥地利物理学家 Wolfgang Pauli(沃尔夫冈泡利) 的姓氏,他提出的泡利不相容原理指出:在同一体系中,两电子不能拥有完全相同的一组量子数(常简述为“同一轨道最多容纳两电子且自旋相反”)。
repulsion 源自拉丁语 repellere(“击退、驱离”)。合在一起,“Pauli repulsion”指由不相容原理导致的有效排斥效应。

相关词 Related Words

文学与经典著作 Literary Works & Notable Appearances

  • Molecular Quantum Mechanics(Atkins & Friedman):在讨论电子交换效应、近程相互作用与分子势能曲线时常涉及泡利排斥。
  • Modern Quantum Chemistry: Introduction to Advanced Electronic Structure Theory(Szabo & Ostlund):在从反对称波函数与交换项出发解释近程排斥时常出现相关概念。
  • The Feynman Lectures on Physics(Feynman, Leighton, Sands):在解释物质稳定性、电子简并与量子原理对“排斥”现象的作用时会触及泡利原理及其物理后果。
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