Timeline for How To Define Indexed Vectors
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 27, 2021 at 23:36 | comment | added | Christian | And you are right, I do know that the S1=S2=1. I should have put that is there explicitely. | |
| Aug 27, 2021 at 23:35 | comment | added | Christian | Thank you for your reply. I have three-body problem and the CG coefficients that appear are the ones that I get when I couple the three angular momenta. S3, L3 etc do not appear because one of my angular integrals sets those indices equal to each other. | |
| Aug 27, 2021 at 23:30 | comment | added | march | (Point being, I don't think that the indexing of the vectors is the problem here.) | |
| Aug 27, 2021 at 23:24 | comment | added | march | When you specify the values above, the sum can be done. Of course, most of the time the sum is zero, but I'm sure you have some notion for what values of the L1, L2, etc. the sum should be non-zero | |
| Aug 27, 2021 at 23:22 | comment | added | march | YOu haven't specified what L1, L2, S1, S2, J1, J2, and MJ1 and MJ2 are, so the sum cannot be done by Mathematica. Also, can you be more specific about the physical problem you are solving? There are L's and J's and S's, indicating that you're doing some angular momentum coupling, but you have only a two-element state, so that's strange. Can you clarify? | |
| Aug 27, 2021 at 23:01 | history | asked | Christian | CC BY-SA 4.0 |