stevens.m

Extended Stevens operators.

Syntax

    S=stevens(mult,k,q)

Parameters

  mult - multiplicity of the spin in question

  k    - Stevens operator rank, a non-negative
         integer

  q    - Stevens operator projection, an
         integer between -k and k

Outputs

  S    - Stevens operator matrix

Notes

For historical reasons, the definition of Stevens operators is irregular and must rely on explicitly stockpiled coefficients. Only ranks smaller or equal to 12 are available.

See also

stev2sph.m, irr_sph_ten.m, pauli.m, clebsch_gordan.m, add_spins.m, cg_fast.m, comm.m, hilb2liouv.m, ist_product_table.m, lorentz.m, mat2sphten.m, multipack.m, perm_group.m, rocomm.m, rwalk.m, sle_operators.m, sorensen.m, spher_harmon.m, sphten2mat.m, superop.m, twospinist.m, wigner.m, wigner_3j.m, wigner_6j.m, Kernel_utilities

Version 2.8, authors: Ilya Kuprov, Elizaveta Suturina