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I have never seen a plausible answer to most of them.

Because of diffraction effects the beam is never "narrow" compared to the slits' separation.You can , if you want, set the particles moving from very close to one of the slits or to the wall between them.The maths is more complicated.https://en.wikipedia.org/wiki/Near_and_far_field#Near-field_diffractionQuote from: RobC on 17/12/2018 11:56:06I have never seen a plausible answer to most of them.Did you look in the right places?

Given you have not provided any references,

https://en.wikipedia.org/wiki/Near_and_far_field#Near-field_diffraction

looked high and low.

Incredibly he starts the book by talking about the double slit experiment as if it were a proven basis for quantum physics.

We need a modern version of the experiment that answers my questions.

In the famous double slit experiment of quantum physics a photon fired at a wall with two slits in it appears to behave as a wave. Is this at all dependent on where the photon is fired from? For example, If the photon is fired at the part of the wall between the two slits, is it absorbed by the wall? If it is always fired at the middle of a slit, does it always pass through that slit? What is the wavefunction of the photon in the experiment? What does the wave in the experiment look like?

Quote from: mxplxxx on 17/12/2018 05:35:32In the famous double slit experiment of quantum physics a photon fired at a wall with two slits in it appears to behave as a wave. Is this at all dependent on where the photon is fired from? For example, If the photon is fired at the part of the wall between the two slits, is it absorbed by the wall? If it is always fired at the middle of a slit, does it always pass through that slit? What is the wavefunction of the photon in the experiment? What does the wave in the experiment look like?One can use a laser beam aimed at a double sit, which can be made by using an opaque tape in a sheet of glass. Aim the been at the center of the slits. Make sure that the slits are close enough, i.e. less than half a wave length. If a photon hits the slit wall itself then its not considered with the data collected on the other side of the slit. This won't happen if the slits are close enough to each other.A wave function of a photon is an exponential function. I forget the form it has.

Nowhere can I find the wave function of a photon. Strange.

I am after answers to my questions and this is not happening,

Thx. Nowhere can I find the wave function of a photon. Strange.

If it turns out that you don't understand it, that just tells us there was no point in you looking for it.

Quote from: mxplxxx on 17/12/2018 22:27:27 Nowhere can I find the wave function of a photon. Strange.Eqn 58 herehttp://iopscience.iop.org/article/10.1088/1367-2630/9/11/414If it turns out that you don't understand it, that just tells us there was no point in you looking for it.

One can use a laser beam aimed at a double sit, which can be made by using an opaque tape in a sheet of glass.

Quote from: PmbPhy on 17/12/2018 22:11:00One can use a laser beam aimed at a double sit, which can be made by using an opaque tape in a sheet of glass. This would not result in a single photon at a time would it?

I just want an equation, but it seem that such a beast does not exist

I have no intention of trying to follow complex maths

This would not result in a single photon at a time would it?

BoredChemist, life would likely be much kinder to you i f you concentrated on the questions

The concepts came before the maths and this is what I am interested in.

OK, so, you want an equation; but not maths.Do you see how that might be a problem?