Re: Photons shapeshifting to wave prior to measurement
- From: RP <no_mail_no_spam@xxxxxxxxx>
- Date: Wed, 30 Mar 2005 19:36:26 -0600
bz wrote:
RP <no_mail_no_spam@xxxxxxxxx> wrote in
news:3b0tu3F6am14qU3@xxxxxxxxxxxxxx:
bz wrote:
RP <no_mail_no_spam@xxxxxxxxx> wrote in news:3aup5fF6dk5o9U1 @individual.net:
Sam Wormly posted an article recently about single photons being detected for the first time, so I take this as evidence that the authors of that paper were previously of the opinion that it had never been done, eh? I didn't read the paper, but I have no doubt that they're fooling themselves if they believe it.
there have been MANY single photon experiments. I don't know what frequency/wavelength Sam's post might addressed, but as for visible
light, it was done long ago.
In fact, one can do the double slit experiment under single photon conditions and interference patterns are still observed[once enough
single photons have been collected]
http://www.teachspin.com/products/two_slit/experiments.html and an interesting, somewhat related site. http://web.phys.ksu.edu/vqmorig/tutorials/online/wave_part/
Quote:
"A Dramatic Demonstration of the "Essential Quantum Paradox"
The "essential quantum paradox" can be shown dramatically by a simple experiment. The detector slit is positioned, in turn, at the three empirically determined positions of the -1 minimum, the central maximum, and the +1 minimum of the interference pattern, marked in Figure 4 as P-1, P0, and P+1. Photon count rates are measured for the slit-blocker set to permit light to pass through only one slit, through both slits, or through only the other slit.
At the central maximum, going from one to two sits quadruples not doubles, the count rate. And, contrary to the logic of classical particles, at either minimum, opening a second slit markedly reduces the count rate." _______________________
If this doesn't convince you that it is only transitions in the detector are being counted, then I don't know what will.
There is indeed a single wave emitted from an atomic transition event,
but this wave isn't a photon, it is a wave. Granularity of radiation
isn't evidence of photons, it is evidence of discrete waves.
One wave
can induce more than one transition,
Then everyone from Einstein till now has been wrong about the photo electric effect?
Not everyone, no, just those that were wrong. Ask Caroline Thompson what her sentiments are about it. She has published papers on the subject of "no photons".
and 100 waves can induce one
transition.
Demonstrably WRONG. It doesn't matter how many photons hit the photocathod, as long as the energy (frequency low/wavelength high) is too low, no electrons are emitted.
Hmmm. I look in the mirror, how many of the reflecting waves, pardon "photons" induced transitions in that material. Light goes through a lens, how many transitions were induced in the lens material as the light passed through? Here are instances of virtually zero transitions per 100 waves.
In the photoelectric effect you're mainly talking conservation of energy. That the emission event is sensitive to frequencies above the threshold is no more mysterious that an atom's transition being sensitive to a single frequency. There isn't a one to one correspondence, unless under some specific condition it occurs accidentally.
Richard Perry
It just depends on the pumped state of the detector and upon the beam intensity.
How come one wave excites one electron in one location and the next wave
excites an electron in a widely different location, etc., etc., etc.,
Probabilities.
Only one electron. In locations separated by millions of wavelengths at
the frequency of the light in question. How does all that spread out energy get 'reconcentrated' into a small package?
It doesn't, the wavelet that you are incorrectly calling a photon only catalyzes the interaction, the remaining energy is drawn from the ambient field. Keep in mind that in wave dynamics energy is not locally conserved, it is globally conserved. It is incorrect to even think in terms of the wave having energy, it only has potential energy which is another way of saying that it has the potential to do work. The amount of work done in any specific location depends entirely upon the global geometry.
How can a beam of photons pass through a succession of small openings? If they were a wave, the first opening would change the plane wave into a spherical wave and the beam would be disrupted.
If the openings are small enough then yes sir, the beam will be disrupted. Look up "diffraction".
Richard Perry BTW, I can no longer follow this thread's sequence in my reader, so I propose starting another thread to continue this discussion. Cheers :)
.
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