Recent content by KiwiBlack

Homework Statement Show that < l,m | Lx2 - Ly2 | l,m > = 0 Homework Equations L2 = Lx2 + Ly2 + Lz2 [ Lx, Ly ] = i h Lz [ L, Lz ] = i h Lx [ Lz, Lx ] = i h Ly The Attempt at a Solution I tried substituting different commutation values in place of Lx and Ly, but I'm...

Homework Statement Consider a one-dimensional wave packet with \phi(p) = A \Theta ((h/2\pi) / d -|p-p0|) Determine the constant A and find the spatial wave function ψ(x). Ignore temporal evolution. Homework Equations The Attempt at a Solution Honestly this is a little embarrassing, but the...