How electroweak symmetry breaking hides in quantum entanglement

The weak force's strength is encoded in particle scattering data, but physicists don't usually think of it as a quantum information problem. This work shows that two independent entropy measures—one tracking how entangled particles become during electroweak symmetry breaking, the other measuring quantum correlations in collision products—both pinpoint the same value of the weak mixing angle. The agreement traces back to a simple geometric picture: mass-generating interactions act like a quantum gate shuffling particle chiralities. This connection suggests fundamental relationships between symmetry breaking and quantum information that might guide searches for physics beyond the Standard Model.