Module permute 

Polarization coefficients of plane waves under cyclic permutations of the Cartesian axes.

Upstream: treams.pw.permute_xyz and its kernels _cxyz_to_yzx_* (one turn) and _cxyz_to_zxy_* (two turns, inverse=True).

Structs

PermutationResidual

What permutation saves for its pullback: the wavevectors, the polarizations, the number of turns and the polarization convention.

Functions

permutation

Polarization coefficients of plane modes under turns cyclic permutations of the axes, shape (2, modes).

permutation_pair 🔒

The parity coefficients [same, cross] of the plane wave vector under turns cyclic turns of the axes, as jets in the wavevector components.

permutation_polarization 🔒

permute_xyz

One cyclic-coordinate polarization coefficient without allocating a matrix: the coefficient of polarization destination in the permuted plane wave for an input of polarization source.