Timeline for Wigner's $9$-$j$ symbol - four electrons orbital angular momentum coupling
Current License: CC BY-SA 4.0
13 events
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| Jun 29, 2020 at 18:11 | comment | added | ZeroTheHero | Yeah I don' have Jutsis with me but it's an extremely good reference, and I would not be surprised if you could express your overlap as a sum of 6j's. | |
| Jun 29, 2020 at 18:00 | comment | added | 081N | I'm asking if 1. and 2. (each one separately) can be expressed in terms of 9-j symbols. Looking to Yutsis' graphs I think 1. and 2. can be expressed as 6-j symbols as they can be seen as recoupling of three angular momentum (I'll post a more detailed description). As you said you have some contrains in building the 9-j coefficient and at first glance it seems not possible with the coupling chosen. | |
| Jun 29, 2020 at 17:40 | answer | added | ZeroTheHero | timeline score: 2 | |
| Jun 29, 2020 at 16:38 | comment | added | ZeroTheHero | what do you mean by "relate the scheme"? Are you asking if 1. and 2. can be expressed in terms of standard 9-j symbols or are you asking if one can define this overlap, compute from the get-go, and figure out if the resulting symbols as 9-j-like properties? | |
| Jun 29, 2020 at 13:39 | comment | added | 081N | I think that since this can be seen as a recoupling of three of the four angular momentum (where two terms are of the type $j$ and one of the type $J_{i,k}$), the wigner's coefficient between these two coupling schemes reduces to Wigner's 6-j symbol. | |
| Jun 29, 2020 at 11:55 | history | edited | 081N | CC BY-SA 4.0 |
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| Jun 26, 2020 at 21:00 | history | tweeted | twitter.com/StackPhysics/status/1276621306654572552 | ||
| Jun 26, 2020 at 20:10 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
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| Jun 26, 2020 at 19:10 | history | edited | 081N | CC BY-SA 4.0 |
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| Jun 26, 2020 at 19:02 | history | edited | 081N | CC BY-SA 4.0 |
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| Jun 26, 2020 at 18:54 | history | edited | 081N | CC BY-SA 4.0 |
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| Jun 26, 2020 at 18:15 | review | First posts | |||
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| Jun 26, 2020 at 18:13 | history | asked | 081N | CC BY-SA 4.0 |