V2EX neutron degeneracy

Neutron Degeneracy

定义 / Definition

中子简并(或中子简并态):在极高密度下,由于泡利不相容原理,中子不能占据相同量子态而形成的量子效应;它会产生抵抗进一步压缩的简并压,是解释中子星支撑机制的重要概念。(在物理语境中也常与“中子简并压”连用。)

发音 / Pronunciation (IPA)

/nutrn ddenrsi/

例句 / Examples

Neutron degeneracy helps support a neutron star against gravity.
中子简并有助于支撑中子星对抗引力坍缩。

As the core collapses, neutron degeneracy pressure rises rapidly, altering the star’s equation of state and slowing further compression.
当恒星核心坍缩时,中子简并压会迅速上升,改变物质的状态方程,从而减缓进一步的压缩。

词源 / Etymology

neutron 来自 neutral(“中性的”)的构词背景,指不带电的粒子“中子”;degeneracy 源自拉丁语 degenerare(“退化、偏离原本的种类/状态”),在物理学中引申为“不同粒子占据能量态的‘简并’现象”。合起来,“neutron degeneracy”指“与中子相关的简并效应/简并状态”。

相关词 / Related Words

文学与著作示例 / Notable Works

  • Black Holes, White Dwarfs, and Neutron Stars(Shapiro & Teukolsky)
  • An Introduction to the Study of Stellar Structure(S. Chandrasekhar)
  • The Physics of Neutron Stars(多种综述/论文题名中常出现相关表述)
  • Gravitation and Cosmology(Steven Weinberg,涉及致密天体与简并物质背景概念)
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