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Does a photon have spatial dimensions.Also do two photons having different energy occupy the same volume?
Thnx
Thnx
I quote marlon from one of the threads in the Quantum Forums as he explains the crux of the matter so eloquently;I went thru a few of the topics u had suggested,but i fail to understand how a photon is a point particle.This is as energy occupies space and time so shudnt a photon:zzz:
Just to add. Keep in mind that a photon is defined as a quantum of energy. So it is designated by a number in an energy-coordinate space, NOT in a spatial coordinate space. So a photon is not defined as an entity with fixed spatial boundaries, designated by numbers in a spatial coordinate base.
Just as an addendum
marlon
If you click on the "archive" links and then on the "View full version" link on the page that pops up, the threads are formatted properly.The "size of a photon" has been discussed regularly here. You might like to review some previous threads:
http://www.google.com/search?q=photon+size+site:physicsforums.com
Tip: concentrate on links that do not contain "archive" in the URL. The archive versions of threads don't have information about quoting, which can make reading them confusing, because it's hard to figure out who wrote what.
Does "pain" occupy space? What about the color indigo or the saltiness flavor? Do they occupy space?But still..Energy occupies space isnt it.I am sorry and thank all of you for being patient.But does energy occupy space or not(I think so as it also curves space-time)
Can you show me evidence that allows you to claim that "it occupies spacetime"? It appears that you used this several times, but you made no such support to how you would know such a thing.Please be more polite .I am being straight-forward .Please be the same with me and please explain to me why a photon cannot have volume even though it occupies spacetime
Er.. there is a problem with logical consistency here. You simply cannot make a connection like this in physics and expect to get away with it. Just because A does something to B doesn't mean that A=B. A photon can also cause the emission of an electron. Does that mean it is also an electron? Or "occupies the space of an electron"?Sure.What i understand is tht if something curves spacetime then it occupies spacetime.Now please tell me whether that is correct or not
But why should it?Might be.And im not saying if a photon curves spacetime it is spacetime(A=B)
.So please explain that y cannot it be that a photon occupies space-time
Does a photon have spatial dimensions.Also do two photons having different energy occupy the same volume?
i fail to understand how a photon is a point particle.This is as energy occupies space and time so shudnt a photon?
Also, duz a photon travel in a wave?
This might be a good time/place to point out that mention of "volume", "dimension", and "curved spacetime", plus the fact that you posted on the "special and general relativity" board at PF, could be taken to suggest that you are asking about the relativistic but classical (as in "nonquantum") viewpoint taken in special and general relativity.What i understand is tht if something curves spacetime then it occupies spacetime.Now please tell me whether that is correct or not
Well, if you follow my advice and rephrase this as the assertion that according to gtr, the electromagnetic field energy in a "light beam" (think of a projector in a movie theater) should gravitate, and therefore should curve spacetime, you are correct, but to verify that you need to postulate a "legal" model according to gtr. One such model is the Bonnor beam, an exact "null dust" solution in gtr. See http://en.wikipedia.org/w/index.php?title=Bonnor_beam&oldid=47130395Might be.And im not saying if a photon curves spacetime it is spacetime(A=B)
So please explain that y cannot it be that a photon occupies space-time.
Yes. In another and very recent thread, I mentioned how Einstein arrived at this conclusion from expanding the expression for the relativistic kinetic energy of a particle, namelywhat is meant by e=mc^2.Just for my knowledge,does it signify that masss and energy are related and mass is a form of energy.