Yes, My point. We think of them as opposites.
Okay, physics is weird. I donât know much. My understanding - 1. (1). Fermions (2). Bosons
These are mainly classified by their spin. Fermions are those particles, which contain fractional spin e.g. electron have spin either +(1/2) or -(1/2).
How can photons be fermions? Ordinarily they are bosons meaning they have integer spin. But they can in special cases behave like half spin fermions. See [There are many ways to spin a photon: Half-quantization of a total optical angular momentum.
Does this imply flaws in quantum theory or a need to revamp our understanding of optics?
No nothing of the sort. What we have here, an historical event common in physics, is an experimental discovery of an incontrovertible consequence of the theory heretofore unrecognized. We have a lack of human imagination not lack of theoretical viability.
What we discovered was that if you restrict the physical dimensions photons can move in they behave differently. This is yet another instantiation of the quantum Hall effect, nonabelian anyons, Majoranan Fermion, etc.
I fully agree with you. The way we think and the way we categorize events in the world is from a sense of utility, and quite possibly necessity. Is it reality or just the way our brains are dividing up the world? Are the divisions real or just useful?
Perhaps, this is like the âBrain in the Vatâ It really doesnât matter. We live in the world and this is the way we see it. Not to see it this way has consequences that are real.
Iâm asking because I have frequently taken the position that there are no opposites for things that are real. Only concepts, theories, hypotheses have opposites.
MAGNATISM ---- interesting. We only have an opposite when we break the chain. If we have a long magnet, N on one side and P on the other, everything is in sequential order. If we cut it in half and flip it around, we now have NP PN. And the Positives repeal each other. Are they opposite or just going the wrong way? Opposites attract. If I turn the piece back around to where I have NPNP, everything is in order and the magnets attract. It is opposite, or just natures way of saying âWe connect this way, not that way?â
I agree with this completely. I think there are levels of opposites and that they are more made up than actually real. If I look at a color wheel, orange is opposite blue. These are opposite colors on a color wheel. It does not follow that they are opposite frequencies, but just different. However, the opposite of color is an absence of color or darkness. Black. Both orange and blue share the opposite, black.
Opposites are easy to find when we look at abstract concepts, and adjectives (which themselves are often reified adjectives).
I noticed there is actually a lot of philosophical discussion about this online in different forums. I donât actually think there is an answer. There seems to be a lot of debate and some interesting positions.
Yes. I think that is where my brain is ending up as well. It seems to be a perception thing based on functionality or utility.