Next: Ground to excited state
Up: Second-Order Approximate Coupled-Cluster (CC2)
Previous: Fast geometry optimizations with
Transition moments are presently implemented for excitations
out of the ground state and for excitations between excited states for
the coupled cluster models CCS and CC2.
Transition moments for excitations from
the ground to an excited state are also available for ADC(2),
but use an additional approximation (see below).
Note, that for transition moments (as for excited-state first-order properties)
CCS is not equivalent to CIS and CIS transition moments are not implemented
in the ricc2 program.