Hello. I have this same problem and was able to find it here. I actually got everywhere up to the point of
N = m(2r'theta' +gcos(theta)) but am getting a wrong answer. I assumed this was the final answer. Since there is no normal force in the er direction or Ez direction, why isn't this it?
Homework Statement
Given the delta function -α[δ(x+a) + δ(x-a)] where α and a are real positive constants.
How many bound states does it possess? Find allowed energies for \frac{hbar2}{ma} and \frac{hbar2}{4ma} and sketch the wave functions.
Homework Equations
I know there are three parts of...
Homework Statement
Find the probability current of a free particle.
Homework Equations
\Psi(x,t) = Aei(kx-\frac{(hbar)k^{2}t}{2m})
J(x,t) = \frac{ihbar}{2m}(ψψ*' - ψ*ψ')
The Attempt at a Solution
I figured it was just take the derivative of the time dependent wave function and...
Hello. This is my first post here. I am an undergrad student and my first experience with quantum mechanics isn't going as well as I hoped. I decided I should join this form and ask question for conceptual help.
So here is my first question.
The formula for probability current has a...