作者查詢 / sukeda
作者 sukeda 在 PTT [ Physics ] 看板的留言(推文), 共1088則
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19F推: 你把Boltzmann-Maxwell distribution 給個常數v_0並不改變06/01 08:24
20F→: <v^2>所以定義溫度沒問題06/01 08:24
21F→: 相對論下equalpartition theorem就會改變 不過也滿好算的06/01 08:25
22F→: equipartition06/01 08:27
23F→: <v^2>這邊指的是算標準差06/01 08:34
37F推: 溫度個人認為從Boltzmann equation的平衡態解去定義去理解06/02 09:53
38F→: 無論非平衡態分布函數如何最終趨向平衡態的MB解06/02 09:55
39F推: 算動能<v^2>等於是去考慮機率密度函數的fluctuation06/02 10:00
12F推: R.I.P.05/24 08:18
4F推: 他是對時間做LT 基本上要解擴散我會對空間FT變成一階ODE05/01 09:06
11F推: Line broadening04/29 09:27
17F推: 沒normalized還好吧 反正記得最後處理掉就好04/23 08:18
18F推: 如果有normalized tr(rho)=1, 也就是說沒normalized時04/23 09:48
19F→: 必須除掉tr(rho)這樣還是能維持tr(rho)=104/23 09:49
20F→: tr(rho)= 1/N sum_{k=1}^{N} <psi^{k}|psi^{k}>04/23 09:50
21F→: rho= 1/N sum_{k=1}^{N} |psi^{k}><psi^{k}|04/23 09:51
22F→: 所以很明顯tr(rho)=/=1 所以要滿足=1除掉tr(rho)就好了04/23 09:53
23F推: rho/tr(rho) is a normalized density operator which04/23 09:59
24F→: imdicates that <G>=tr(rho G)/tr(rho)04/23 10:00
25F→: indicates04/23 10:00
30F推: http://bit.ly/1qItCn504/24 08:00
35F推: 我知道 。課本寫的也沒什麼問題04/24 11:32
3F推: It's pure quantum mechanical04/07 08:04
14F推: 先找本簡單的固態來看吧 推薦simons02/28 10:50
21F推: Datta不錯 古早舊的那本稍難，新的比較適合大學生02/29 09:02
22F→: 前兩三年好像還有出課堂筆記就不清楚了02/29 09:03
26F推: 樓上正解XD03/02 10:55
44F推: 去米國唸CS02/23 09:34
10F推: 今天一早APS網站爆炸啦 塊陶阿~~~~02/12 09:53
67F推: 一個MIT 一個CalTech02/14 09:08
32F推: 有機材料的傳輸 德國強的很 理論實驗都強01/31 09:18