V2EX coupling constant

Coupling Constant

定义 Definition

耦合常数:在物理学(尤其是量子场论、粒子物理、电磁学等)中,用来衡量相互作用强弱的参数;它决定不同场、粒子或系统之间“耦合”(相互影响/相互作用)的程度。不同理论中耦合常数的具体形式不同(例如电磁相互作用的精细结构常数)。

发音 Pronunciation (IPA)

/kpl knstnt/

例句 Examples

The coupling constant determines how strongly the particles interact.
耦合常数决定粒子相互作用的强弱。

In quantum field theory, the measured coupling constant can change with energy due to renormalization effects.
在量子场论中,由于重整化效应,测得的耦合常数会随能量尺度变化。

词源 Etymology

coupling 来自 couple(“连接、成对、使结合”),表示“耦合/连接”;constant 表示“常数/不变的量”。合起来直观地表示“描述连接(相互作用)强度的固定参数”。在现代物理中,这个“常数”有时会随能标“跑动”(运行),但名称仍沿用传统说法。

相关词 Related Words

文学与经典著作 Literary Works

  • Richard P. Feynman, The Feynman Lectures on Physics(《费曼物理学讲义》)
  • David J. Griffiths, Introduction to Elementary Particles(《基本粒子导论》)
  • Michael E. Peskin & Daniel V. Schroeder, An Introduction to Quantum Field Theory(《量子场论导论》)
  • Steven Weinberg, The Quantum Theory of Fields(《场的量子理论》)
关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     2442 人在线   最高记录 6679       Select Language
创意工作者们的社区
World is powered by solitude
VERSION: 3.9.8.5 34ms UTC 16:04 PVG 00:04 LAX 09:04 JFK 12:04
Do have faith in what you're doing.
ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86