Recent content by glederfein

Is the answer zero because eigenvectors are always perpendicular to one another? Doesn't that mean that all the four values in the question are zero?

Homework Statement Given a quantum harmonic oscillator, calculate the following values: \left \langle n \right | a \left | n \right \rangle, \left \langle n \right | a^\dagger \left | n \right \rangle, \left \langle n \right | X \left | n \right \rangle, \left \langle n \right | P \left | n...

I have been studying the double-split experiment and read different descriptions of it, but there's something I don't quite understand about the actual setup of the experiment: In the version of the experiment when photons are fired at the slits one-by-one: Are the photons fired at random...

oops, sorry for the silly question... of course I will get 0.

Hello. I am trying to use the following equation: a\left|\psi_n\right\rangle=\sqrt{n}\left|\psi_{n-1}\right\rangle (where a is the "ladder operator"). What happens when I substitute \psi_n with \psi_0?

anyone? Can someone please help?? Perhaps I should somehow calculate \int{\frac{dq}{r^2}} ?

Homework Statement An insulated spherical shell with its center in the origin and radius R has a surface charge density of \sigma(\theta)=\sigma_0\sin(\theta) when \theta is the angle from the z axis. Calculate the electrical field outside the shell at point z=R. Homework Equations...