Free-fall non-universality in quantum theory
arXiv:2204.03279 · doi:10.1002/andp.202200386
Abstract
We show by embodying the Einstein equivalence principle - local Poincaré invariance - and general covariance in quantum theory that wave-function spreading rules out the universality of free fall, i.e. the free-fall trajectory of a quantum (test) particle depends on its internal properties. We provide a quantitative estimate of the free-fall non-universality in terms of the Eötvös parameter, which turns out to be measurable in atom interferometry.
arXiv commenttypos fixed, published version
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