AtomicDensityMatrix Paclet Symbol  Tutorials »More About » 
Hamiltonian[sys] returns the matrix Hamiltonian for atomic system sys assuming the absence of external fields. 
Hamiltonian[sys, MagneticField→{bx, by, bz}, ElectricField→{ex, ey, ez}] returns the matrix Hamiltonian including interaction terms with external classical magnetic and/or electric fields. 
ElectricField  0  external electric field  
MagneticField  0  external magnetic field  
Interaction  Automatic  which types of interactions to include  
RestrictCoupling  All  which transitions to allow nonzero coupling on 
"Internal"  eigenenergies due to internal interactions  
"MagneticDipole"  magnetic dipole interaction with external field  
"ElectricDipole"  electric dipole interaction with external field  
"Polarizability"  effective Hamiltonian due to atomic polarizability 
Magneticfieldinteraction Hamiltonian for a Zeeman system subject to an arbitrarily directed magnetic field:
Hamiltonian for a Zeeman system subject to a linearly (x)polarized optical field and static magnetic field:
