Collisional frequency shifts in Sr+ optical clocks

Code and interaction potentials used in calculations of Sr-He and Sr-H2 collisional frequency shift, to accompany the published article in Physical Review A, doi.org/10.1103/knhc-k4p8 File description: CFS_SrHeH2.py - Python code used in calculations Sr*_parametrized_potentials.zip - two archives with 4 *.dat files for each system. Files contain coefficients for exponent-spline-c6 function used to approximate the potential curves SO-coupled*.dat - Results of SO-coupled ab initio calculations for Sr-H2 and Sr-He diatomic systems