LeFH18
- 2
- 1
- Homework Statement
- Show that the functions:
ψ_m(θ)= (2π)^(-1/2) e(imθ), m = 0, +- 1, +-2, ...
form an orthonormal set over the interval (0,2π)
- Relevant Equations
- Function set:
ψ_m(θ)= (2π)^(-1/2) e(imθ), m = 0, +- 1, +-2, ...
Orthonormality condition:
int( ψ*_m ψ_n dx) = δ_nm
where δ is Kronecker's delta
The textbook, "Mathematics for Physical Chemistry - Opening doors" (McQuarrie), solves this example excercise as follows:
And is the case for n =/= m which I'm troubled with, because, if I solve the integral instead of using the cycles argument, I get that:
And I can't see how this is equal to zero. Any leads on why this must be zero for n unequal of m?
And is the case for n =/= m which I'm troubled with, because, if I solve the integral instead of using the cycles argument, I get that:
And I can't see how this is equal to zero. Any leads on why this must be zero for n unequal of m?