AtomicDensityMatrix`

AtomicDensityMatrix`

# TransitRelaxation

TransitRelaxation[sys,rate]

returns the relaxation matrix for atoms described by atomic system sys leaving the experimental region at a rate rate.

# Details and Options

- The atomic system sys is specified as a list of AtomicState objects.
- The transit-relaxation matrix is equal to the identity matrix multiplied by rate.