COULD WE OBSERVE THE DISCRETENESS OF QUANTUM-GRAVITY LENGTH AND AREA OPERATORS?*)

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Abstract

Several proposals for Quantum Gravity involve length and area operators with discrete eigenvalues. I show that the analyses of some simple procedures for the measurement of areas and lengths suggest that this discreteness characterizing the formalism might not be observable. I also discuss a possible relation with the so-called κ deformations of Poincaré symmetries.

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