qspec.a_dipole  (  i ,  j_l ,  f_l ,  m_l ,  j_u ,  f_u ,  m_u ,  q ,  as_sympy = False  )[source]

The spherical transition dipole element $(A_{Fm}^{F^\prime m^\prime})_q$, as described in [R. C. Brown et al., Phys. Rev. A 87, 032504 (2013)].

Parameters:

isympy_expr | scalar

The nuclear spin quantum number $I$.

j_lsympy_expr | scalar

The electronic total angular momentum quantum number $J_l$ of the lower state.

f_lsympy_expr | scalar

The total angular momentum quantum number $F_l$ of the lower state.

m_lsympy_expr | scalar

The magnetic quantum number $m_l$ of the total angular moment of the lower state.

j_usympy_expr | scalar

The electronic total angular momentum quantum number $J_u$ of the upper state.

f_usympy_expr | scalar

The total angular momentum quantum number $F_u$ of the upper state.

m_usympy_expr | scalar

The magnetic quantum number $m_u$ of the total angular moment of the upper state.

qsympy_expr | scalar

The polarization component $q$. Must be in {-1, 0, 1} for $\sigma^-$, $\pi$ and $\sigma^+$ light.

as_sympybool

Return the result as a symbol (True) or as a float (False).

Returns:

a_dipolesympy_expr | float

The spherical transition dipole element $(A_{Fm}^{F^\prime m^\prime})_q$.