I'm not sure I fully understand what you mean by carrier frequency. In the case of light, the wavelength can be found simply by looking at the fields, for particles in a potential well we can sample the probability of the particle being at certain positions and get our wavelength that way. Where...
Another thing I was wondering, if a free electron is associated with a 3D gaussian, what meaning does the De Broglie wave length have? Is it just the wavelength of the wave function of the particle that it would get after an interaction with a slit for example?
What about the case of an electron that collides with another particle, what does the wave function look like afterwards? Also, what about the momentum vector of the electron after the diffraction? For a planar wave, we used h bar * k, but this doesn't work for any non-planar waves, right?
Hi,
We just started studying wave-particle dualism and there is a basic thing I do not understand. Usually we use a planar wave packet to describe particles (an electron for example). This seems confusing to me because planar waves have infinitely extended wave fronts, which first of all means...