Abstract
Various models of quantum gravity imply the Planck-scale modifications of Heisenberg's uncertainty principle into a so-called generalized uncertainty principle (GUP). The GUP effects on high-energy physics, cosmology, and astrophysics have been extensively studied. Here, we focus on the weak-equivalence-principle (WEP) violation induced by the GUP. Results from the WEP test with the dual-species atom interferometer are used to set upper bounds on parameters in two GUP proposals. A -level bound on the Kempf-Mangano-Mann proposal and a -level bound on Maggiore's proposal, which are consistent with bounds from other experiments, are obtained. All these bounds have huge room for improvement in the future.
- Received 30 January 2017
DOI:https://doi.org/10.1103/PhysRevA.95.042106
©2017 American Physical Society