convolvecl.mixmat_eb¶

convolvecl.mixmat_eb(cl, l1max=None, l2max=None, l3max=None, spin=(0, 0), spin_out=None)¶

compute the E/B-mode mixing matrix for an angular power spectrum

Equivalent to mixmat(), but computes the mixing matrices for E/B-mode angular power spectra.

Parameters:

clarray_like: Angular power spectrum of the mixing matrix.
l1maxint, optional: Maximum output mode. If not given, the size of cl is used.
l2maxint, optional: Maximum input mode. If not given, the value of l1max is used.
l3maxint, optional: Maximum mode for summation. If not given, all cl values are summed.
spin(2,) tuple of int: Spin weights of the input angular power spectrum which will be multiplied by the mixing matrix.
spin_out(2,) tuple of int: Spin weights of the output angular power spectrum after the mixing matrix has been applied.

Returns:

mat(3, l1max+1, l2max+1) array: Mixing matrix for given cl and spin weights. The 3 components are the EE-EE (or BB-BB) mixing matrix \(W^{++}\), the EE-BB (or BB-EE) mixing matrix \(W^{--}\), and the EB-EB mixing matrix \(W^{++} + W^{--}\).