Timeline for The relation between gauge symmetry and global internal symmetry
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Dec 6, 2020 at 10:53 | comment | added | Ali N. | @MadMax, thanks for the comment. You're right, I was not being precise in that sentence. | |
| Dec 6, 2020 at 10:51 | vote | accept | Ali N. | ||
| Dec 6, 2020 at 1:53 | vote | accept | Ali N. | ||
| Dec 6, 2020 at 1:55 | |||||
| Dec 4, 2020 at 16:11 | comment | added | MadMax | " By internal symmetry I mean a symmetry group G (not Lorentz or Poincare)". You might be supersized to learn that for gravy the local Lorentz symmetry is an "internal symmetry"(does not involve coordinate transformation!), while the diffeomorphism is an "external symmetry" (involves coordinate transformation). See answer here: physics.stackexchange.com/questions/502982/… | |
| Dec 4, 2020 at 13:02 | answer | added | Oбжорoв | timeline score: 2 | |
| Dec 4, 2020 at 4:05 | comment | added | Ali N. | @ d_b, thanks for the comment. My confusion arises exactly from your point. I thought when we say we have a gauge theory we have a theory with a local symmetry and the gauge fields are the connections of the Lie group but then I came across the following paper.There, we have a color vector charge $\vec{q}$ with a global SO(3) symmetry in color space and gauge symmetry for the gauge field. The definition of strength tensor and the transformations are the same as E&M only now we have a SO(3) symmetry instead of U(1). By internal symmetry I mean a symmetry group G (not Lorentz or Poincare). | |
| Dec 4, 2020 at 2:10 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
added 13 characters in body; edited tags; edited title
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| Dec 4, 2020 at 1:23 | comment | added | d_b | @AliN. Perhaps you could define for us what you mean by "global internal symmetry," "local internal symmetry," and "gauge symmetry." In the standard terminology, "local symmetry" and "gauge symmetry" are synonyms. | |
| Dec 4, 2020 at 1:07 | comment | added | Ali N. | Hi there, many thanks for your comment. I edited the question and hopefully it's more clear now. Just to clarify, my question is not about the relation between global and local internal symmetry. It's about the relation between gauge symmetry and internal symmetry. I'd appreciate any thoughts on this. | |
| Dec 4, 2020 at 0:51 | history | edited | Ali N. | CC BY-SA 4.0 |
Made it more clear
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| Dec 3, 2020 at 12:55 | comment | added | Oбжорoв | I believe the OP is asking what the relation is between a global internal symmetry and a local internal symmetry. But this question is not very clearly written. I suggest the OP rephrases this. | |
| Dec 3, 2020 at 12:51 | review | First posts | |||
| Dec 3, 2020 at 12:55 | |||||
| Dec 3, 2020 at 12:47 | history | asked | Ali N. | CC BY-SA 4.0 |