[題目] 位能井
[領域] 量物 位能井 (題目相關領域)
[來源] 93清大物研 近物 (課本習題、考古題、參考書...)
[題目] 93清大近物 第四題
http://www.lib.nthu.edu.tw/library/department/ref/exam/p/phys/93/930401.pdf
Consider the scattering of a right-going particle of mass m by the potential
V(x)=A*delta(x)+V0*u(x), A and V are constants, u(x) is step function. The
energy E>V0
a) Find the probability that particle is transmitted to X>0 region
b) Evaluate the flux or probability current ,in both x>0 and x<0 regions
[瓶頸] (寫寫自己的想法，方便大家為你解答)
翻量物課本只有計算-delta(x)的情況
因為兩邊位勢不同
所以波函數寫下來
φ1= exp(ik1x)+B*exp(ik1x)
φ2= Cexp(ik2x)
後面還是不清楚要怎麼寫
代邊界條件
跟連續不可微分條件
好像消不大掉一些東西 兩邊k值不同 囧
想問問看板大 波函數跟邊界條件有沒有令錯@@??
--
▆ █████ █████ ▆
◢◤ ▉ █ ◥◣
◢◤ ▉ █▅▂＿▂▅█ █ ◥◣
◥◣ ▉ ▅▂＿▂▅ █ ◢◤
◥◣ ▉ █ ◢◤
▃ ▃ Dingcross*
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.115.30.133
推
02/17 21:28, , 1F
02/17 21:28, 1F
→
02/17 22:00, , 2F
02/17 22:00, 2F
→
02/17 22:05, , 3F
02/17 22:05, 3F
→
02/17 22:43, , 4F
02/17 22:43, 4F
推
02/18 01:40, , 5F
02/18 01:40, 5F
→
02/18 01:40, , 6F
02/18 01:40, 6F
→
02/18 08:08, , 7F
02/18 08:08, 7F
討論串 (同標題文章)