Similarity Renormalization Group Evolution of Many-body Operators

Unitary transformations such as Similarity Renormalization Group (SRG) are used to soften nuclear interactions to improve convergence in the calculation of nuclear wavefunctions and energies. Calculations of other observables will only be correct if the corresponding operators are also transformed. I will present applications of SRG to nuclear radii, Gamow-Teller beta decay and neutrinoless double-beta decay operators. By performing the transformation in two- or three-body space, the SRG-induced two- and three-body contributions can be separated and analyzed.