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作者 kuromu 在 PTT [ Physics ] 看板的留言(推文), 共499則
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1F→: 4.15可從4.14推得,例如(1+Ag+..)/(1+Bg+..)可寫成05/06 02:30
2F→: (1+Ag+..)x(1-Bg+..)乘開以後把同為g^n的項整理在一起05/06 02:32
3F→: Wick’s theorem會考慮兩兩一組的乘積,4.16就是算出05/06 02:37
4F→: {x,x’,y,y,y,y}某些限制下所有兩兩一組的組合05/06 02:37
7F→: 如果一定要用泰勒展開,我感覺第二種求法,可能只是把第一04/01 22:15
8F→: 種討論r^n到做法化為等價的解微分方程問題04/01 22:15
2F→: The cosmological constant in the McCrea-Milne04/01 00:57
3F→: cosmological scheme04/01 00:58
4F→: 然後我發現那個微分方程和解球座標下Laplace方程04/01 00:59
5F→: 分離變數後r那部分方程,l=1時的一樣,有點神奇04/01 01:01
8F→: 如果只需要球對稱條件,任何1/r^n作用都有球殼定理?03/30 21:46
7F→: 感覺不是完全謄寫03/05 16:28
5F→: photoionization microscopy?11/05 17:34
1F→: 湊答案感覺高度是5m11/05 17:31
11F→: 是因為光子和電子的能量-動量關係不匹配 需要原子核03/30 18:25
12F→: 吸收額外動量?而光子能量如果大太多03/30 18:26
13F→: 就不容易走這個散射機制?03/30 18:27
14F→: 也許可以用撞球類比?高能量光子像是慣性大的球03/30 18:33
15F→: 碰撞完難以「停住」就好像走康普頓散射03/30 18:34
11F→: 電子參考座標系,是原子核繞著轉03/05 23:42
11F→: 要用高中不會提到的散射關係解釋11/28 16:51
12F→: 色散關係11/28 17:21
27F→: 自由粒子能量/動量算子有共同本徵態所以E=E(P)11/29 21:47
28F→: 外加位能時 能量/動量往往沒有共同本徵態11/29 21:49
1F→: 從[E,A]的電場-位勢對易關係,取適當的曲面曲線07/13 01:17
2F→: 分別積分湊出目標式後可推得07/13 01:18