Recent content by Flamel

From what I understand, the anomalous Doppler effect can occur when a charged particle moves through a medium faster than light would move through that medium; however in the paper, The Doppler Effect in a Warm Uniaxial Plasma, it mentions that this effect can occur when a dipole moves faster...

The particle doesn't necessarily need to be a photon. I believe you could also add a pair of polarizers in opposite directions over the slits and use polarization to determine which slit it came from if I'm not mistaken, so i think the photons don't necessarily need to be destroyed to measure...

Why would measuring it some other way way prevent diffraction? Don't quantum eraser experiments show that measurements can be made on a particle and will allow diffraction to occur, so long as it can't be determined which slit the particle came through?

By observing which slit a particle passes through, it would increase momentum uncertainty because we now know more specifically the position of the particle, correct? This also reduces diffraction and results in two relatively narrow bands rather than the typical interference pattern between the...

Yes, I understand that it influences the results, but why would increasing momentum uncertainty decrease diffraction if the momentum uncertainty is part of what creates diffraction?

Momentum uncertainty isn't the only parameter needed for diffraction is it? If that were the case, why would detecting which slit a particle passed through result in reduced diffraction, since the momentum uncertainty should increase with that measurement?

Yes, I understand that there are probability amplitudes that constructively and destructively interfere. I think what is confusing is how momentum uncertainty apparently also plays a role in the formation of interference patterns.

That is true, but if a particle passed through each of the slits at the same time and their positions were measured by a detector, they wouldn't interfere the same way as they would without a detector, correct?

I understand that other types of waves interfere, but what is unclear to me is how momentum uncertainty plays a role in it. Before I thought it was just due to the position probability wave bending around slits and interfering. Would it be more accurate to view it as a pattern that arises from...

Do regions without particl How does the momentum uncertainty generate the minima in the interference pattern? Does it have something to do with the nodes in the infinite square well, and if so why are there no obvious minima when you know which slit the particle traveled through?

Do you mean that the single-slit diffraction patterns are there, but are hard to notice or aren't generally talked about when discussing the double-slit experiment? In terms of my question about momentum, from what I was told before, it seems that the uncertainty in momentum from measuring the...

That could be one possible method of determining location, but one could also detect position via detecting the electrical field.

In that case, what would happen if the position of an electron with a wavelength of 500 nm going through a pair of 2 micrometer slits had its position measured with an uncertainty of 1 micrometer before passing through the slits? Would the interference pattern eventually disappear if you...

In terms of detectors, some examples might be a device that detects the electrical charge from an electron or perhaps a filter that polarizes photons going through each slit in different directions, but the type of detector isn't necessarily specified when I've heard about this experiment.

From what I understand, if the two-slit experiment is performed while observing a slit for particles, two distinct bands appear rather than interfering. This is a little confusing, as, from what I understand, diffraction is caused by measuring a particle's position (i.e. using a slit to narrow...