Computational encoding for scattering

Determine the computational prescription, including the choice of spin basis and treatment of additional quantum numbers, that minimizes the total computational cost of scattering processes.

Background

The calculations use a laboratory spin basis, whereas the helicity basis involves angle-dependent rotations that can be non-Clifford and therefore alter the measured magic. The paper leaves unresolved whether the laboratory encoding is optimal and whether flavor and other quantum numbers should be incorporated jointly with spin.

References

What is the computational prescription? The Lab basis provides a common encoding for incoming and outgoing spins along the fixed beam axis.

— Quantum Magic and the Strong Coupling Constant  (2610.11121 - Liu et al., 8 Oct 2026) in Section Discussion, bullet point “What is the computational prescription?”