gw_embedding.iaft.IAFT.tau_to_w

IAFT.tau_to_w(Ot, stats: str)[source]

Fourier transform from imaginary-time axis to Matsubara-frequency axis :param Ot: numpy.ndarray

imaginary-time object with dimensions (nts, …)

Parameters:: stats – str statistics: ‘f’ for fermions and ‘b’ for bosons
Returns:: numpy.ndarray Matsubara-frequency object with dimensions (nw, …)