V2EX rydberg-state

Rydberg State

释义 Definition

里德伯态(Rydberg state):指原子或分子中电子被激发到很高主量子数 \(n\) 的量子态。在这种状态下,电子平均离核更远、束缚更弱,能级非常密集,对外电场/磁场特别敏感,并常表现出接近“类氢原子”的性质。(该术语也常用于“里德伯原子/里德伯分子”等语境。)

发音 Pronunciation (IPA)

/rd.b stet/

例句 Examples

The laser excites the atom into a Rydberg state.
激光把原子激发到一个里德伯态。

Atoms in a Rydberg state have exaggerated properties and can interact strongly over long distances, which is useful for quantum simulation.
处于里德伯态的原子会呈现“被放大”的物理性质,并能在较远距离上发生强相互作用,这对量子模拟很有用。

词源 Etymology

Rydberg 源自瑞典物理学家 Johannes Rydberg(约翰内斯里德伯) 的姓氏;他提出了描述原子光谱规律的里德伯公式与里德伯常数。state 在物理中常指“量子态/状态”。合起来即“与里德伯光谱规律相关的高激发量子态”。

相关词 Related Words

文学与经典著作 Literary Works

  • Johannes R. Rydberg 的经典光谱研究论文(19世纪末,提出光谱经验规律;后成为量子理论的重要线索)中与“Rydberg”体系密切相关。
  • C. J. Foot,《Atomic Physics》:在原子结构与光谱章节中讨论高激发态/类氢能级时常出现 Rydberg states
  • B. H. Bransden & C. J. Joachain,《Physics of Atoms and Molecules》:讲解原子能级、量子缺陷(quantum defect)与高 \(n\) 态时常用到 Rydberg state 的概念。
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