# P superop.m

Sided product superoperator in the spherical tensor basis set. Returns superoperators corresponding to right or left multiplication of a density matrix by a user-specified operator. Syntax:

                 A=p_superop(spin_system,opspec,side)


Arguments:

    opspec - Spinach operator specification described in Sections 2.1
and 3.3 of the following paper:

                    http://dx.doi.org/10.1016/j.jmr.2010.11.008

    side   - 'left' or 'right' causes the function to return a product
superoperator corresponding to a product from that side;
'comm' or 'acomm' results in commutation and anticommuta-
tion superoperator respectively.


Note: This is a very general function to which direct calls are not usually required -- please use the (much friendlier) operator() function.