Sr88_S0_Vaillant2024

class rydstate.species.strontium.sr88_vaillant2024_k_matrix_model_data.Sr88_S0_Vaillant2024(mqdt)

Parameters:

mqdt (MQDT)

species = 'Sr88'

The species for which the MQDT model is defined.

name = 'S J=0, nu > 3.7'

The name of the atomic species.

f_tot = 0

Total angular momentum f_tot of the Rydberg state.

parity = 1

Parity (-1 or +1) of the Rydberg state, i.e. (-1)^(l_c + l_r) of its channels.

nu_range = (3.7, inf)

Range of effective principal quantum numbers nu for which the MQDT model is valid.

reference = 'C. L. Vaillant, M. P. A. Jones and R. M. Potvliege, J. Phys. B: At. Mol. Opt. Phys. 57, 199401 (2024), https://doi.org/10.1088/1361-6455/ad76f0 (Addendum to J. Phys. B: At. Mol. Opt. Phys. 47, 155001 (2014), https://doi.org/10.1088/0953-4075/47/15/155001)'

Reference for the MQDT model, e.g., a publication doi where the model is described.

outer_channels = [AngularKetJJ(i_c=0.0, s_c=0.5, l_c=0, s_r=0.5, l_r=0, j_c=0.5, j_r=0.5, j_tot=0.0, f_tot=0.0, n_c=5), AngularKetJJ(i_c=0.0, s_c=0.5, l_c=2, s_r=0.5, l_r=2, j_c=2.5, j_r=2.5, j_tot=0.0, f_tot=0.0, n_c=4), AngularKetJJ(i_c=0.0, s_c=0.5, l_c=2, s_r=0.5, l_r=2, j_c=1.5, j_r=1.5, j_tot=0.0, f_tot=0.0, n_c=4)]

List of outer channels in the MQDT model.

k_matrix_entries = [(0, 0, [1.05126086, 0.87639111]), (0, 1, [0.375986417]), (0, 2, [-0.0236548468]), (1, 1, [-0.640092484, 0.404258438]), (1, 2, [-0.000206382548]), (2, 2, [3.00908733, -17.2263065])]

Elements of the symmetric K-matrix in the outer channel frame.

Each entry is a tuple (i, j, coefficients) with the indices i <= j of the involved outer channels and coefficients the list of expansion coefficients [K⁽⁰⁾, K⁽¹⁾, …] of the polynomial in the energy variable epsilon (a constant element is a single element list). Only the upper triangle needs to be given, the lower triangle follows from the symmetry of the K-matrix. Elements not given are zero.