Perhaps very simple, but it eludes me:(adsbygoogle = window.adsbygoogle || []).push({});

How does one calculate an explicit form for the irreducible tensor operators in a given basis? In my particular case, I'm looking at expanding a 3X3 density matrix in the angular momentum basis. T_1n (n = -1, 0, 1) are simple enough : J+, J_z, J-. But what about T_2n (n = -2 ... 2)? I know the answer, but don't know how it was arrived at...

Clues?

(Note : '_', as usual, indicates that what follows is a subscript)

Oh - and if you can help out with a physical significance for the T_2n I would appreciate it. Again - T_1n are angular momenta, but T_2n???

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Irreducible Tensors

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**