V2EX renormalization

Renormalization

释义 Definition

重整化 / 重正则化:在物理学(尤其是量子场论)中,用一套系统方法把计算中出现的“发散(无穷大)”吸收到参数(如质量、电荷、耦合常数)的重新定义里,从而得到有限且可与实验对应的结果。(在更广义的数学/统计物理中,也可指对不同尺度上的系统进行参数“再标定”的过程。)

发音 Pronunciation (IPA)

/rinrmlzen/

例句 Examples

Renormalization helps remove infinities from quantum field calculations.
重整化有助于从量子场论计算中消除无穷大。

Through renormalization, the measured charge differs from the “bare” charge because interactions at different scales effectively reshape the parameters.
通过重整化,测得的电荷会不同于“裸”电荷,因为不同尺度上的相互作用会有效地重塑这些参数。

词源 Etymology

来自 **re-**(再、重新)+ normalize(使标准化、归一化)+ -ation(名词后缀,表示过程/结果)。字面意思是“再次归一/再次标准化”,在物理语境中引申为“把参数重新定义到可用的、有限的形式”。

相关词 Related Words

文学与名著用例 Literary Works

  • Steven Weinberg, The Quantum Theory of Fields(系统讨论重整化与重整化群)
  • Michael E. Peskin & Daniel V. Schroeder, An Introduction to Quantum Field Theory(教材中大量使用 renormalization 讲解可重整化理论)
  • Richard P. Feynman, QED: The Strange Theory of Light and Matter(以通俗方式涉及重整化思想)
  • Kenneth G. Wilson, “The Renormalization Group and Critical Phenomena” 相关论文与综述(以重整化群视角奠基统计物理与场论的尺度分析)
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