H
hecd2
Guest
No I don’t. Physics is a mathematical science from beginning to end (going back to at least Galilean descriptions of motions including Galilean transformations and Keplerian dynamics) and if you don’t understand the maths, you don’t understand the physics. The physical picture I have been using has been that of physical optics and electro-magnetic wave theory that has been thoroughly understood for more than a hundred years. You simply can’t derive explanations for the behaviour of light by simple analogies to bullets, wheels, clouds or anything else. Your model conflicts with known physics in the following ways:EXACTLY in what way does it conflict? Don’t give me a string of equations that you think somehow won’t fit. Tell me in what exact way that physical model doesn’t apply to the physical situation. To do that, you need to come up with a physical picture yourself.
- Does not predict the observed production of fringes in a quantised Young’s experiment (the OP’s question)
- Does not give the correct prediction for the observed production of fringes in a non-quantised Young’s experiment as the destructive interference predicted is a monotonic function of separation in the model
- Does not give the observed diffraction pattern in the far field at a straight edge, or a circular or a rectangular aperture
- Does not model observed photon energy
- Confuses polarisation with wave phase relationships
- Confuses wave diffraction effects with gravitational effects
Oh give us a break and get a dictionary;You are wrong. The correct term is diffraction whether you are talking about waves or particles.
You cannot determine the meaning of scientific terms from a general dictionary - in science they have very precise meanings, and in this case the phenomenon you are talking about is diffraction (departures from geometric optics predictable by the wave theory of light). The phenomenon of dispersion is something else entirely (dependence of refractive index on wavelength - the effect that causes prismatic colour separation). That’s just a fact. In this case, by maintaining your error, you are just showing how little you know about the subject that you are presuming to teach everyone else.
Yes, I got that particular thing wrong. Take note of the fact that I know enough about what I am talking about to realise that what I said was wrong; and that I immediately held up my hand and admitted that I had made a mistake - you could learn something from that.Yes you DID get it WRONG!!! {geeez}
Maybe YOU can’t, but it certainly CAN be done. But the truth is that it wouldn’t matter whether it could realistically be done anyway. We were talking about a theoretical situation.you can’t determine a unique path for any photon.
I can’t, you can’t, no-one can in any situation where interference can take place; and that is the essence of experiments like the quantised Young’s that you don’t even seem to understand. Furthermore using hypothetical situations that plainly violate known physics to make predictions are worse than useless - they lead to very poor predictions.
Of course, that is exactly what quantised Young’s is. Don’t patronise me - I have done these experiments myself - have you?You DO realize that they fire single photons through experimental apparatuses to measure a variety of things?
Nevertheless, and this is the essence of these sort of quantised experiments that you fail to understand, even if you fire the photons off one a week, their number density distribution is the same as the diffraction pattern predicted by wave theory.You don’t bring the photons so close to the edge that they “touch” such as to get reflected. And you don’t fire one after another so close that one interferes with the other in flight.
The word is diffract not defract. So, in this case, if you constrain the photons to be travelling through a narrow aperture with a narrowly constrained momentum vector, even if you fire them off one a week, they will diffract (each will diffract by a different random amount), and over time their distribution in the far field will reconstruct the intensity distribution as predicted by wave theory for that constrained propagation state (its Fourier transform). This is not theory - this is observation.If each photon is going to “self-defract” due to being too narrow of a beam. I would like to know how they ever find their way across space. You are saying that they just wander aimlessly in self-determined directions. Emmm… NO.
No, I am describing the physical reality (which itself you are unaware of) using theories and models based on maths - that’s what physics is.You are trying to explain mathematics as though the math were the physical reality.
Alec
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