qspec.simulate. Interaction.delta  (  )[source]

The diagonal of the Hamiltonian without Doppler or additional laser frequency shifts $$ \operatorname{diag}(H_\text{diagonal}) = A\vec{\omega}_0 + B\vec{\omega}, $$ where $A$ (Interaction.atommap) is a matrix with shape (atom.size, atom.size), mapping the atomic frequencies $\vec{\omega}_0$ onto the diagonal of the Hamiltonian, and $B$ (Interaction.deltamap) is a matrix with shape (atom.size, #lasers), mapping the laser frequencies $\vec{\omega}$ onto the diagonal of the Hamiltonian.

Returns:

Deltandarray

The diagonal of the Hamiltonian without Doppler or additional laser-frequency shifts.