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Updated: Aug 26, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Strongest Atomic Physics Bounds on Noncommutative Quantum Gravity Models
Kristian Piscicchia1,2, Andrea Addazi3,2, Antonino Marcianò2,4
1Centro Ricerche Enrico Fermi-Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, 00184 Roma, Italy, EU.
Abstract:
Investigations of possible violations of the Pauli exclusion principle represent critical tests of the microscopic space-time structure and properties. Space-time noncommutativity provides a class of universality for several quantum gravity models. In this context the VIP-2 lead experiment sets the strongest bounds, searching for the Pauli exclusion principle violating atomic transitions in lead, excluding the θ-Poincaré noncommutative quantum gravity models far above the Planck scale for nonvanishing θ_{μν} electriclike components, and up to 6.9×10^{-2} Planck scales if θ_{0i}=0.
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