Could one demonstrate the existence of large Planck constant photons using ordinary camera or even bare eyes?
If ordinary light sources generate also dark photons with same energy but with scaled up wavelength, this might have effects detectable with camera and even with bare eyes. In the following I consider in a rather light-hearted and speculative spirit two possible effects of this kind appearing in both visual perception and in photos. For crackpotters possibly present in the audience I want to make clear that I love to play with ideas to see whether they work or not, and that I am ready to accept some convincing mundane explanation of these effects and I would be happy to hear about this kind of explanations. I was not able to find any such explanation from Wikipedia using words like camera, digital camera, lense, aberrations..
Why light from an intense light source seems to decompose into rays?
If one also assumes that ordinary radiation fields decompose in TGD Universe into topological light rays ("massless extremals", MEs) even stronger predictions follow. If Planck constant equals to hbar= q×hbar0, q=na/nb, MEs should possess Zna as an exact discrete symmetry group acting as rotations along the direction of propagation for the induced gauge fields inside ME.
The structure of MEs should somewhat realize this symmetry and one possibility is that MEs has a wheel like structure decomposing into radial spokes with angular distance Δφ= 2π/na related by the symmetries in question. This brings strongly in mind phenomenon which everyone can observe anytime: the light from a bright source decomposes into radial rays as if one were seeing the profile of the light rays emitted in a plane orthogonal to the line connecting eye and the light source. The effect is especially strong if eyes are stirred.
Could this apparent decomposition to light rays reflect directly the structure of dark MEs and could one deduce the value of na by just counting the number of rays in camera picture, where the phenomenon turned to be also visible? Note that the size of these wheel like MEs would be macroscopic and diffractive effects do not seem to be involved. The simplest assumption is that most of photons giving rise to the wheel like appearance are transformed to ordinary photons before their detection.
The discussions about this led to a little experimentation with camera at the summer cottage of my friend Samppa Pentikäinen, quite a magician in technical affairs. When I mentioned the decomposition of light from an intense light source to rays at the level of visual percept and wondered whether the same occurs also in camera, Samppa decided to take photos with a digi camera directed to Sun. The effect occurred also in this case and might correspond to decomposition to MEs with various values of na but with same quantization axis so that the effect is not smoothed out.
What was interesting was the presence of some stronger almost vertical "rays" located symmetrically near the vertical axis of the camera. The shutter mechanism determining the exposure time is based on the opening of the first shutter followed by closing a second shutter after the exposure time so that every point of sensor receives input for equally long time. The area of the region determining input is bounded by a vertical line. If macroscopic MEs are involved, the contribution of vertical rays is either nothing or all unlike that of other rays and this might somehow explain why their contribution is enhanced.
Addition: I learned from Samppa that the shutter mechanism is un-necessary in digi cameras since the time for the reset of sensors is what matters. Something in the geometry of the camera or in the reset mechanism must select vertical direction in a preferred position. For instance, the outer "aperture" of the camera had the geometry of a flattened square.
Anomalous diffraction of dark photons
Second prediction is the possibility of diffractive effects in length scales where they should not occur. A good example is the diffraction of light coming from a small aperature of radius d. The diffraction pattern is determined by the Bessel function
J1(x), x=kdsin(θ), k= 2π/λ.
There is a strong light spot in the center and light rings around whose radii increase in size as the distance of the screen from the aperture increases. Dark rings correspond to the zeros of J1(x) at x=xn and the following scaling law for the nodes holds true
For very small wavelengths the central spot is almost pointlike and contains most light intensity.
If photons of visible light correspond to large Planck constant hbar= q× hbar0 transformed to ordinary photons in the detector (say camera film or eye), their wavelength is scaled by q and one has
sin(θn)→ q× sin(θn)
The size of the diffraction pattern for visible light is scaled up by q.
This effect might make it possible to detect dark photons with energies of visible photons and possibly present in the ordinary light.
For details see the chapter Dark Nuclear Physics and Condensed Matter.