Difference between revisions of "Rotframe.m"
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H0 - carrier Hamiltonian with respect to which the | H0 - carrier Hamiltonian with respect to which the | ||
rotating frame transformation is to be done | rotating frame transformation is to be done | ||
| − | + | ||
H - laboratory frame Hamiltonian H0+H1 that is to | H - laboratory frame Hamiltonian H0+H1 that is to | ||
be transformed into the rotating frame | be transformed into the rotating frame | ||
| − | + | ||
isotope - string, such as '1H', specifying the spins | isotope - string, such as '1H', specifying the spins | ||
with respect to which the transformation is | with respect to which the transformation is | ||
being computed | being computed | ||
| − | + | ||
order - perturbation theory order in the rotating | order - perturbation theory order in the rotating | ||
frame transformation, this may be inf | frame transformation, this may be inf | ||
Revision as of 17:41, 5 June 2026
Rotating frame transformation with respect to specified spins to specified order in perturbation theory (https://doi.org/10.1063/1.4928978).
Syntax
Hr=rotframe(spin_system,H0,H,isotope,order)
Arguments
H0 - carrier Hamiltonian with respect to which the
rotating frame transformation is to be done
H - laboratory frame Hamiltonian H0+H1 that is to
be transformed into the rotating frame
isotope - string, such as '1H', specifying the spins
with respect to which the transformation is
being computed
order - perturbation theory order in the rotating
frame transformation, this may be inf
Outputs
H - rotating frame Hamiltonian
Notes
The auxiliary matrix method is massively faster than either commutator series or diagonalisation.
See also
intrep.m, average.m, dirdiff.m, propagator.m, equilibrium.m
Version 2.2, authors: Ilya Kuprov
