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.
Cite
@article{arxiv.2209.00074,
title = {Strongest atomic physics bounds on Non-Commutative Quantum Gravity Models},
author = {Kristian Piscicchia and Andrea Addazi and Antonino Marciano and Massimiliano Bazzi and Michael Cargnelli and Alberto Clozza and Luca De Paolis and Raffaele Del Grande and Carlo Guaraldo and Mihail Antoniu Iliescu and Matthias Laubenstein and Johann Marton and Marco Miliucci and Fabrizio Napolitano and Alessio Porcelli and Alessandro Scordo and Diana Laura Sirghi and Florin Sirghi and Oton Vazquez Doce and Johann Zmeskal and Catalina Curceanu},
journal= {arXiv preprint arXiv:2209.00074},
year = {2022}
}