Comment on Open Thread: November 2009

Mon, 02 Nov 2009 23:04:20 GMT

Oh, a bit off topic, but mind clarifying something for me? My QFT knowledge is very limited at the moment, and I'm certainly not (yet) up to the task of actually trying to really grasp the Standard Model, but...

Is it correct to say that in a sense the force carriers are, in a sense, illusory? That is, the gauge bosons are kind of an illusion in the same sense that the "force of gravity" is? From what little I managed to pick up, the idea is that instead one starts without them, but assigns certain special kinds of symmetries to the configuration space. These local (aka) gauge symmetries allow interference effects that basically amount to the forces of interaction. One can then "rephrase" those effects in a way that more looks like another quantum field interacting with, well, whatever it's interacting with?

ie, can the electromagnetic, strong, and weak forces (as forces) be made to go away and turn into symmetries in configuration space in the same sense that in GR, the force of gravity goes away and all that's left is geometry of spacetime?

Or have I rolled a critical fail with regards to attempting to comprehending the notion of gauge fields/bosons?

Thanks. Again, I know it's a slight tangent, but since the subject of the Standard Model came up anyways...

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