Electron Spin and the Double-Slit Experiment

[analog]

Explanations tailored around our limited understandings ... lol.

you may wish to read about quantum effects in the manufacturing of semiconductor devices

Hmmm....I'm not sure that this one can be tailored to fit us old buddy......lol......I'm going to study......I'll be back!

P.S. Out awfully late aren't you Dave.....lol? Probably couldn't sleep knowing Greg and I were making such a mess around here.....rotflmao.

[Graybeard]

Hmmm....I'm not sure that this one can be tailored to fit us old buddy......lol......I'm going to study......I'll be back!

I'm still partially with him. I would have thought that not only are semi-conductors crystals, but by default, also quantum devices. These would just be the beam-splitters instead of actual slits. Therefore by energising or charging the crystal you can control how attractive or repellent those gaps becomes to a speeding electron. Your controlling the gaps 'orientation and dimensions'

If I have to think about several billion slits, a big ask ... lol, then I suppose an IC Chip is analogous to them. The interference patterns caused by the slits (I/O switch) are used to control the I/Os of other switches within the chip, and as this can be fed into loopbacks the probabilities of all outcomes are enormous. These statistical outcomes can be controlled to build ... ummmmm ... a computer.

I suppose if you take no slits at all then everything takes every possible path until it coheres ... and we have our present universe.

Or perhaps I'm just lost ... rotflmao

cool bananas ... greg

[Wick]

The physical orientation and dimensions of the slits are highly dependent on the wavelength of the EM waves you wish to experiment with. In the case of an electron, those wavelengths are extremely short and thus we can only do a double slit experiment with electrons within the confines of a crystal structures; the slits are actually gaps between the molecules of the crystal. I might mention that semiconductors are crystals; you may wish to read about quantum effects in the manufacturing of semiconductor devices; think about the effects of several billion slits on the wave functions of electrons.

Thanks, Dave. Would there be any difference, do you think in the interference pattern if electrons with spin alignment are used, or would it look the same as a typical interference pattern using unaligned electrons?

Wick

[dleviwing]

It will not make any difference Wick. The pattern will remain the same.

[JAK]

It will not make any difference Wick. The pattern will remain the same.

Are the spins opposite in direction for an electron and a positron?

[Wick]

According to the Standard Model, I believe any fundamental particle can spin with its axis oriented in any direction. All fundamental particles can also spin on their axis either to the right or to the left. The only difference between an electron and a positron is charge...at least that's how I understand it. Dave or Greg might know better.

There are certain particles (neutrinos) that would seem to spin only to the left. We don't understand why that's the case. Another one of those mysteries the TOE will have to answer.

If fundamental matter were 4-dimensional in nature, it might be spinning on every possible axis to the left on one side and to the right on the other side. If such were the case, our measurement of a particle's spin and orientation in 3-space would only be a 3D cross-section of the information (a single orientation and one spin direction), whereas there may be more information for an observer in 4-space.

Regards!

Wick

Wick