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.
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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
