Precision Measurement of the Position-Space Wave Functions of Gravitationally Bound Ultracold Neutrons by Y. Kamiya, G. Ichikawa, S. Komamiya

“…The quantum modulation of neutron bound states measured in this experiment shows good agreement with the prediction from quantum mechanics.…”
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Background-induced forces from dark relics by Sergio Barbosa, Sylvain Fichet

“…We compute the forces in the case of dark particles densities that may realistically occur in cosmology, assuming either (i) cosmically homogeneous or (ii) virialized phase space distributions. For homogeneous distributions — analogous to cosmic neutrinos, all the background-induced forces remain, unlike the quantum ones, exponentially unsuppressed at large distance, implying that large scale fifth force experiments are highly sensitive to dark relics. …”
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