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State Details Window

This window shows the Hamiltonian matrix and the eigenvalues for a particular state (upper or lower), J and symmetry.

Selecting the State

Selects a state or manifold, (for a particular isotope, if applicable).
Label2J Required total angular momentum, (or M if a static field is present).
Label3Symmetry Required symmetry - valid values depend on molecular point group.
Perturbations Uncheck this box to exclude perturbations from the calculation.
Label4IgnoreSpins Set how many nuclear and electron spins to exclude from the calculation.

The Hamiltonian Matrix

This shows the Hamiltonian Matrix before diagonalisation.Note the basis states in the row and column headings, and the key to the basis state quantum numbers on the right.


The Energy Levels and Eigenvectors

This shows the energy levels (second white column), the quantum numbers for the levels (first column, with the key to the quantum numbers on the top right) and the corresponding coefficients (subsequent columns). The columns are labeled by basis state, as in the Hamiltonian matrix.

nBasisLabelnBasisSpinBox If this is set to a number, n, then it shows the n largest coefficients in the eigenvector.

Eigenvectors Popup Menu

Right clicking on an eigenvector brings up a menu with the following entries:
Add to population selection Add currently highlighted state(s) to the manifold parameter area for manual population entry.
Remove from population selection Remove currently highlighted state(s) from the manifold parameter area.
Copy Copy selected eigenvectors to clipboard.
See Non-Boltzmann Populations for use of the population selection items.