作者查詢 / lewisweilin
作者 lewisweilin 在 PTT 全部看板的留言(推文), 共41則
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1F→:已寄信06/06 11:41
1F→:已寄信06/05 11:28
1F→:已寄信04/16 00:21
1F→:當你在解hermite polynomial的ODE時你的power series03/01 05:31
2F→:會給你兩個recursion relation一個是n為偶數另一個事n03/01 05:32
3F→:為奇數,之後因為是二階ODE所以你會有兩個解例如y1跟y203/01 05:35
4F→:那當你帶n為偶數的時候其中一個會收斂另一個會發散03/01 05:36
5F→:反之n為奇數時情況會相反所以你的hermite polynomial03/01 05:36
6F→:解出來之後就剛好是y1(奇數收斂解)跟y2(偶數收斂解)03/01 05:39
7F→:至於發現的部分因為事物理所以我們不會去討論發散的波03/01 05:40
8F→:函數沒什麼意義03/01 05:40
9F→:更正七樓"發散"我打成"發現"03/01 05:42
1F→:喔。02/20 00:49
15F→:m^2=E^2-p^2這是invariant mass的定義不管在哪個frame02/18 14:19
16F→:都一樣,會變得是E跟p因為它們是four vector02/18 14:20
1F推:both Thomson and Compton scattering are the03/29 03:56
2F→:interaction between light and paricle (mostly03/29 04:00
3F→:electron) except that thomson scattering is in a03/29 04:00
4F→:lower energy version of the Compton's scttering03/29 04:01
5F→:in this case, thomson scattering's incodent photon03/29 04:02
6F→:will have a smaller energy such that when it gets03/29 04:02
7F→:scattered from the particle, it undergoes elastic03/29 04:03
8F→:collsion. On the other hand, Compton scattering03/29 04:03
9F→:will discover the incident poton and outcoming03/29 04:04
10F→:will have different frequency, namely, some of the03/29 04:05
11F→:energy has been transfered to electron's KE.03/29 04:06
12F→:The diffraction is another thing that described by03/29 04:06
13F→:de Broglie's wavelength saying particles have the03/29 04:07
14F→:duality such that the electron also has a wave03/29 04:08
15F→:behaviour03/29 04:08
4F→:np03/29 08:02
5F→:if one day you create some new element with some03/24 21:08
6F→:magic number that is extremely stable, then you03/24 21:10
7F→:probably need j,k,l,m... shell03/24 21:11
3F→:我想在量子力學裡面所探討具有物理意義的operator03/21 12:13
4F推:剛突然看到樓下大大好像回應的很清楚了XD03/21 12:18