Could we observe the discreteness of Quantum-Gravity length and area operators ?

Details Could we observe the discreteness of Quantum-Gravity length and area operators ? Could we observe the discreteness of Quantum-Gravity length and area operators ?

1998-08-17

arxiv.org/abs/gr-qc/9808047v1

Czech.J.Phys. 48 (1998) 1279-1284

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, LaTex. (To appear in the proceedings of 7-th International Colloquium "Quantum Groups and Integrable Systems", Prague

Scientific paper

10.1023/A:1021620214709

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 $\kappa$ deformations of Poincare' symmetries.

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