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View Diary: Higgs Boson Announcement v2.0 (159 comments)

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  •  you are correct (4+ / 0-)

     Strictly speaking, one can certainly write down QED without any charged particles, and the result is a theory with photons, EM fields, and nothing charged.     So, wilderness voice, electromagnetism can certainly exist without charged particles (although in the real world, of course, charges exist and are responsible for every photon we detect).

    •  sure (0+ / 0-)

      there are all kinds of interesting mathematical objects that do not exist in the real world.  

      A photon, once launched, indeed propagates very nicely without further intervention of an electrical charge.  However, how would it ever be created, or detected, without the existence of an electrical charge?

      Scientific Materialism debunked here

      by wilderness voice on Sat Jul 23, 2011 at 08:37:08 AM PDT

      [ Parent ]

      •  well (1+ / 0-)
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        wilderness voice

        a Higgs decays into two photons without any charge, but that is due to quantum fluctuations into charged particles (which then immediately disappear).   Actually, there is a proposed particle called an axion which would decay into two photons, and there are no electric charges anywhere.   But you are right that virtually every photon in the Universe has a charged particle at its origin (and detection).   It just isn't mathematically necessary.

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