- #1
gametheory
- 6
- 0
The normalization condition is:
∫|ψ|[itex]^{2}[/itex]d[itex]^{3}[/itex]r=1
In spherical coordinates:
d[itex]^{3}[/itex]r=r[itex]^{2}[/itex]sinθdrdθd[itex]\phi[/itex]
Separating variables:
∫|ψ|[itex]^{2}[/itex]r[itex]^{2}[/itex]sinθdrdθd[itex]\phi[/itex]=∫|R|[itex]^{2}[/itex]r[itex]^{2}[/itex]dr∫|Y|[itex]^{2}[/itex]sinθdθd[itex]\phi[/itex]=1
The next step is the part I don't understand. It says:
∫[itex]^{∞}_{0}[/itex]|R|[itex]^{2}[/itex]r[itex]^{2}[/itex]dr=1 and ∫[itex]^{2\pi}_{0}[/itex]∫[itex]^{\pi}_{0}[/itex]|Y|[itex]^{2}[/itex]sinθdθd[itex]\phi[/itex]=1
I don't understand why they both have to be one. I remember learning that if a function dependent on one variable equals the function dependent on another variable then they both must equal a constant, which makes sense to me. Given the equations here, however, why can't the R part of ψ in Equation 3 equal, say 0.5, and the Y part = 2?
∫|ψ|[itex]^{2}[/itex]d[itex]^{3}[/itex]r=1
In spherical coordinates:
d[itex]^{3}[/itex]r=r[itex]^{2}[/itex]sinθdrdθd[itex]\phi[/itex]
Separating variables:
∫|ψ|[itex]^{2}[/itex]r[itex]^{2}[/itex]sinθdrdθd[itex]\phi[/itex]=∫|R|[itex]^{2}[/itex]r[itex]^{2}[/itex]dr∫|Y|[itex]^{2}[/itex]sinθdθd[itex]\phi[/itex]=1
The next step is the part I don't understand. It says:
∫[itex]^{∞}_{0}[/itex]|R|[itex]^{2}[/itex]r[itex]^{2}[/itex]dr=1 and ∫[itex]^{2\pi}_{0}[/itex]∫[itex]^{\pi}_{0}[/itex]|Y|[itex]^{2}[/itex]sinθdθd[itex]\phi[/itex]=1
I don't understand why they both have to be one. I remember learning that if a function dependent on one variable equals the function dependent on another variable then they both must equal a constant, which makes sense to me. Given the equations here, however, why can't the R part of ψ in Equation 3 equal, say 0.5, and the Y part = 2?