|MadSci Network: Physics|
I am currently reading a book on quantum physics, and I've reached a part on guage symmetry. I'm a little confused by what was said, so I thought perhaps you could enlighten me. Basically, I understood that each of the four forces in nature are an outgrowth of the symmetry that nature likes to conserve within herself. That is, emphasized by the general theory of relativity, the force of gravity exists because an accelerating object could justifiably be deemed as standing still if we incorporate a gravitational feild into our interpretation. The book went on to point out how the strong force exists because of how the red, blue, and green charges of quarks could be considered to be shifted to yellow, indigo and violet, and the behavior observed by them would be unchanged. For one thing, I don't understand what a yellow, indigo and violet shift would mean (do those charges even exist?). But more pressing for me is that it seems that the behavior of quarks is due to their attractive and repulsive charges TO BEGIN WITH, and that it is not an OUTGROWTH of their symmetrical property. In other words, I don't understand how the strong force follows from this type of symmetry. Since this symmetry is said to apply to all the forces, perhaps in your response you could provide an example using the electromagnetic force instead seeing as how I am much more familiar with protons and electrons than I am with quarks. Thank you.
Re: How does guage symmetry work?
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