Perturbations

Perturbations describe an interaction between two states. To add a perturbation, right-click on the manifold in which the perturbation is required, and select "Add new..."). There can be more than one perturbation between any pair of states as there can be more than one type of interaction that connects states.

These settings are common to all perturbations; more specific settings are included in the sections for linear, symmetric tops and asymmetric top molecules.

Settings

Nucleus Index, starting from 1, of nuclear spin involved in perturbation; 0 (default) for those not involving a nuclear spin.

Parameters

Value Size of perturbation.