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Planckian bound on IR/UV mixing from cold-atom interferometry
Giovanni Amelino-Camelia, Giuseppe Fabiano, Domenico Frattulillo, Flavio Mercati
https://arxiv.org/abs/2508.06171 h…

Planckian bound on IR/UV mixing from cold-atom interferometry
IR/UV mixing (a mechanism causing ultraviolet quantum-gravity effects to manifest themselves also in a far-infrared regime) is a rare case of feature found in several approaches to the quantum-gravity problem. We here derive the implications for "soft" IR/UV mixing (corrections to the dispersion relation that are linear in momentum) of some recent cold-atom-interferometry measurements. For both signs of the IR/UV-mixing correction term we establish bounds on the characteristic length scale whic…