FSW

FSW

1. 1. d 2ψ dx2 = − 2mE ~ 2 ψ = κ 2ψ , where κ = √ −2mE ~ .

   • 1.2. x<-a, ψ(x) = Ae−κx + Beκx
   • 1.1. x>a, ψ(x) = F e−κx.
   • 1.3 d 2ψ dx2 = − 2m(E + V0) ~ 2 ψ = −l 2ψ , where l = p 2m(E + V0) ~ .
     • 1.3.1 − ~ 2 2m d 2 dx2 ψ(x) + V (x)ψ(x) = Eψ(x)
     • 1.3.2 − ~ 2 2m d 2 dx2 ψ(−x) + V (x)ψ(−x) = Eψ(−x)