is a parameter for AtomicState that specifies the (finestructure) energy of the state in units of angular frequency.


returns the value specified for Energy in AtomicState state, or Energy[StateLabel[state]] if it is not specified.

Details and Options

  • Energy is automatically threaded over a list of AtomicState objects appearing as its argument.


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Basic Examples  (1)

Specify an Energy parameter in an atomic state:

Get the specified value for each state, or a placeholder variable if it is not specified:

The values for Energy appear in the diagonal entries of the Hamiltonian:

Scope  (2)

In addition to the Energy parameter, external fields can also affect the diagonal energies:

The value for Energy does not include the hyperfine interaction for atoms with nuclear spin: