Free‐Fall Non‐Universality in Quantum Theory

The author show by embodying the Einstein equivalence principle—local Poincaré invariance—and general covariance in quantum theory that wave-function spreading rules out universality of free fall, is, free-fall trajectory a (test) particle depends on its internal properties. provide quantitative estimate non-universality terms Eötvös parameter, which turns to be measurable atom interferometry.