Displaying the Density Matrix
When an atomic system has been specified, its corresponding symbolic density matrix can be formed. This is done with the DensityMatrix function.
DensityMatrix[sys] | form the density matrix for an atomic system |
DMVariables[sys] | form the list of variables representing density matrix elements |
Each density-matrix element connects two states s1 and s2 (or one state with itself for the diagonal elements). The states are indicated with a subscript StateLabel[si] for each state. For systems that take into account angular momentum, the angular-momentum quantum numbers are used as additional subscripts.
Density-matrix elements for systems with Zeeman structure have subscript {StateLabel[si], M[si]} for each state si.
Density matrix elements for systems with hyperfine and Zeeman structure have subscripts {StateLabel[si],F[si],M[si]} for each state.