This paper formulates two-end sourced twistor memory as an interference geometry. Substituting the determinant-resolvent corner kernel into the affine memory law gives a closed algebraic zero locus for cancellation, separates metric-free zeros from normalised phase cancellation and metric-dependent contrast, and identifies the leading ordered defect with the effective-rotor commutator.
Hiroyuki Shioiri (Sat,) studied this question.