Physical measure of quantum magic

Determine which measure of quantum magic is physically relevant for selecting the values of fundamental interaction parameters, and test whether the stabilizer Rényi entropy is consistently preferred over alternative magic measures across independent processes.

Background

The analysis uses the second stabilizer Rényi entropy because it is precisely defined and computationally convenient for the pure two-qubit states arising in the scattering calculations. However, different resource measures may select different parameter values, so identifying the physically relevant measure is left as an empirical and theoretical problem.

References

Which measure of magic is physically relevant? A resource principle must specify the quantity being minimized.

— Quantum Magic and the Strong Coupling Constant  (2610.11121 - Liu et al., 8 Oct 2026) in Section Discussion, bullet point “Which measure of magic is physically relevant?”

Can the principle make quantitative predictions? Correlated scans would test whether parameter values preferred by different processes are mutually compatible and whether additional minima or flat directions emerge when several parameters vary together.

— Quantum Magic and the Strong Coupling Constant  (2610.11121 - Liu et al., 8 Oct 2026) in Section Discussion, bullet point “Can the principle make quantitative predictions?”