Dimiter Hadjimichef Strongest atomic physics bounds on Non-Commutative Quantum Gravity Models Kristian Piscicchia, Andrea Addazi, Antonino Marciano, Massimiliano Bazzi, Michael Cargnelli, Alberto Clozza, Luca De Paolis, Raffaele Del Grande et al. Hide abstract | Show figures | Show BibTeX | Show discussion | View PDF | 2209.00074v1 Investigations of possible violations of the Pauli Exclusion Principle represent critical tests of the microscopic space-time structure and properties. Space-time non-commutativity provides a class of universality for several Quantum Gravity models. In this context the VIP-2 Lead experiment sets the strongest bounds, searching for Pauli Exclusion Principle violating atomic-transitions in lead, excluding the θ -Poincar\'e Non Commutative Quantum Gravity models far above the Planck scale for non-vanishing θμν ``electric-like'' components, and up to 6.9⋅10−2 Planck scales if θ0i=0 . Authors' comments: 7 pages, 2 figures