Struct Coupling 

pub(crate) struct Coupling {
    same: Vec<(i32, Complex)>,
    cross: Vec<(i32, Complex)>,
}

The degree terms (p, weight) coupling a source (l, m) to a destination (lambda, mu), for all four polarization pairs. The parity basis couples equal polarizations through same and opposite ones through cross; the helicity basis couples equal helicities through both, with cross signed by 2 pol - 1.

same holds the terms of treams.special.tl_vsw_A, cross those of tl_vsw_B.

Fields

same: Vec<(i32, Complex)>

cross: Vec<(i32, Complex)>

Implementations

impl Coupling

pub(crate) fn new( (l, m): (i32, i32), (lambda, mu): (i32, i32), zeros: &Wigner3jRow, kinds: Kinds, ) -> Self

Evaluates the same and cross terms selected by kinds; zeros is Wigner3jRow::new(l, lambda, 0, 0), shared by all orders.

pub(crate) fn terms( &self, to: u8, from: u8, helicity: bool, ) -> impl Iterator<Item = (i32, Complex)> + '_

Terms (p, weight) from source polarization from to destination polarization to, with same-polarization terms first.

Trait Implementations

impl Debug for Coupling

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.