Package for computing Kerr quasinormal mode frequencies, separation constants, and spherical-spheroidal mixing coefficients
copied from cf-staging / qnmqnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coefficients. The qnm package includes a Leaver solver with the Cook-Zalutskiy spectral approach to the angular sector, and a caching mechanism to avoid repeating calculations.
