Timeline for Weinberg Sec 5.1 - Why is the transformation of fields in QFT independent of position?
Current License: CC BY-SA 4.0
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| Feb 6, 2022 at 19:30 | vote | accept | awsomeguy | ||
| Feb 4, 2022 at 15:09 | answer | added | octonion | timeline score: 1 | |
| Feb 4, 2022 at 14:27 | comment | added | Prahar | $D$ is a representation of the Lorentz group. You can use this to build a representation of the Poincare group by taking a field at the origin $x=0$ and then defining its Lorentz representation at that point. Then you use the translation generators to translate it to a generic point $x$. Following this construction it is clear that the $x$ dependence of $D$ would be completely fixed by symmetry arguments. The fact that it is independent of $x$ is a consequence of the calculation. | |
| Feb 4, 2022 at 14:13 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
added 11 characters in body; edited tags; edited tags
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| Feb 4, 2022 at 14:09 | history | asked | awsomeguy | CC BY-SA 4.0 |