hokhani's latest activity

As far as I know, in QM an alternating electric field sets Floquet levels with energy spacing ##\hbar \omega##. But I don't know what...

Right, there are experimental limitations, but I am looking to this subject in a pure theoretical view.

Exactly. My discussion is only in the framework of non-relativistic QM.

On the same ensemble after the first measurement.

If measurement of an observable ##\hat{A}## is done over an ensembles of large number of copies of the system, then the average value of...

Suppose that you used a point detector to perhaps detect the particle at ##x_0## and it doesn't detect there. Next you use another...

In classical electrodynamics, acceleration of charge generates radiation. In quantum mechanics, radiation is generated by transition of...

For a position measurement you generally need a detector screen. In the Stern-Gerlach or diffraction experiments, for example.

Yes.

To measure the position of a quantum particle it seems that the detector must covers all the positions to detect the particle at one...

Right, I didn't consider it. But at least one can say that the right part of the inequality is also undefined.

That's only correct for a free particle, i.e., zero potential. That's not the case in your example; you have a potential confining the...

The boundary conditions enter through the wave function which is zero outside the box.

Thank you very much. It seems also that the right of the inequality is zero, i.e., ##\langle [H,p]\rangle =0## which strengthens more...