SQDTCesium

class rydstate.species.cesium.SQDTCesium[source]
Parameters:
  • args (object)

  • kwargs (object)

Return type:

CachedT

species: ClassVar[str] = 'Cs'

The short name of the atomic species.

is_default: ClassVar[bool] = True

Whether this SQDT is the default SQDT for the species.

nist_data_file: ClassVar[str | None] = 'nist_data.txt'

Name of the file (in the species directory) with the low-lying NIST energy levels, usually "nist_data.txt". Left as None for species without a NIST data file.

ionization_energy: ClassVar[tuple[float, str]] = (31406.4677482, '1/cm')

(value, unit).

Type:

Ionization energy

quantum_defects: ClassVar = {(0, 0.5, 0.5): [4.0493532, 0.2391, 0.06, 11, -209], (1, 0.5, 0.5): [3.5915871, 0.36273, 0.0, 0.0, 0.0], (1, 1.5, 0.5): [3.5590676, 0.37469, 0.0, 0.0, 0.0], (2, 1.5, 0.5): [2.475365, 0.5554, 0.0, 0.0, 0.0], (2, 2.5, 0.5): [2.4663144, 0.01381, -0.392, -1.9, 0.0], (3, 2.5, 0.5): [0.03341424, -0.198674, 0.28953, -0.2601, 0.0], (3, 3.5, 0.5): [0.033537, -0.191, 0.0, 0.0, 0.0], (4, 3.5, 0.5): [0.00703865, -0.049252, 0.01291, 0.0, 0.0]}

Dictionary containing the quantum defects for each (l, j_tot, s_tot) combination, i.e. quantum_defects[(l,j_tot,s_tot)] = [d0, d2, d4, d6, d8]