Intrep.m

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Interaction representation transformation with respect to a specified Hamiltonian to specified order in perturbation theory. Syntax:

    Hr=intrep(spin_system,H0,H,T,order)

Parameters:

   H0     - the Hamiltonian with respect to which the
            interaction representation transformation
            is to be done
   H      - laboratory frame Hamiltonian H0+H1 that is
            to be transformed into the interaction rep-
            resentation
   T      - period of the H0 propagator
   order  - perturbation theory order in the rotating
            frame transformation

Revision 3250, authors: Ilya Kuprov