Timeline for Does there exist finite dimensional irreducible rep. of Poincare group where translations act nontrivially?
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13 events
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| Sep 15, 2020 at 15:07 | answer | added | megaleo | timeline score: 1 | |
| Dec 1, 2018 at 12:52 | history | edited | Qmechanic♦ |
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| Dec 1, 2018 at 12:50 | answer | added | Richard Shurtleff | timeline score: 2 | |
| Apr 22, 2016 at 4:15 | vote | accept | 346699 | ||
| Apr 8, 2016 at 5:30 | comment | added | Valter Moretti | Actually not, did you try to have a look at Barut Raczac's textbook on representations? | |
| Apr 8, 2016 at 5:20 | history | edited | 346699 |
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| Apr 8, 2016 at 5:08 | comment | added | 346699 | @ValterMoretti Thanks. ACuriousMind and your answer have solved the question 1,3. Do you have any idea of question 2? | |
| Apr 8, 2016 at 5:04 | history | edited | 346699 | CC BY-SA 3.0 |
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| Apr 7, 2016 at 18:33 | answer | added | ACuriousMind♦ | timeline score: 7 | |
| Apr 7, 2016 at 18:17 | history | edited | Qmechanic♦ | CC BY-SA 3.0 |
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| Apr 7, 2016 at 17:58 | history | edited | 346699 | CC BY-SA 3.0 |
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| Apr 7, 2016 at 17:46 | comment | added | Valter Moretti | All unitary irreducible representations of Lorentz group are infinite dimensional. This is the reason. In fact, unitary reps. of the Poincaré group are studied in general not only those of Lorentz group when defining the notion of elementary particle in the sense of Wigner. Dealing with fields the translational part acts trivially, for this reason is usually disregarded when viewing fields as section on some vector bundle based on the spacetime. | |
| Apr 7, 2016 at 17:38 | history | asked | 346699 | CC BY-SA 3.0 |