V2EX fermi-dirac distribution

Fermi-Dirac Distribution

释义 Definition

费米狄拉克分布:描述处于热平衡费米子(如电子、中子等,满足泡利不相容原理)在不同能量状态上的占据概率的统计分布。在凝聚态物理、半导体、金属电子理论与量子统计中非常常见。(该词也常与“费米能级/化学势、温度”一起出现。)

发音 Pronunciation (IPA)

/fmi drk dstrbjun/

例句 Examples

At room temperature, the Fermi-Dirac distribution explains why most electrons stay below the Fermi level.
在室温下,费米狄拉克分布解释了为什么大多数电子仍停留在费米能级以下。

By applying the Fermi-Dirac distribution, we can estimate carrier concentrations in a semiconductor as the temperature changes.
通过应用费米狄拉克分布,我们可以估算半导体中载流子浓度如何随温度变化。

词源 Etymology

“Fermi-Dirac”来自两位物理学家恩里科费米(Enrico Fermi)与保罗狄拉克(Paul Dirac),他们在20世纪20年代建立并发展了费米子体系的量子统计;“distribution”意为“分布”。该术语用于区分于描述玻色子的“BoseEinstein istribution(玻色爱因斯坦分布)”。

相关词 Related Words

文献与著作 Notable Works

  • Enrico Fermi, “Sulla quantizzazione del gas perfetto monoatomico” (1926)(费米关于理想气体量子化的经典论文)
  • P. A. M. Dirac, “On the Theory of Quantum Mechanics” (1926)(狄拉克早期量子理论论文,涉及相关统计思想)
  • Landau & Lifshitz, Statistical Physics(《统计物理》:系统介绍费米狄拉克统计与分布)
  • Kittel & Kroemer, Thermal Physics(《热物理》:常用于教学推导与应用)
  • Kittel, Introduction to Solid State Physics(《固体物理导论》:用于解释金属与半导体中的电子占据)
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