Comments on area spectra in Loop Quantum Gravity

Details Comments on area spectra in Loop Quantum Gravity Comments on area spectra in Loop Quantum Gravity

2004-02-13

arxiv.org/abs/gr-qc/0402064v2

Rev.Mex.Fis. 50 (2005) 549-552

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, no figures. Comments and references added

Scientific paper

We examine and compare different area spectra that have been recently considered in Loop Quantum Gravity (LQG). In particular we focus our attention on a Equally Spaced (ES) spectrum operator introduced by Alekseev et. al. that has gained recent attention. We show that such operator is not well defined within the LQG framework, and comment on the issue regarding area spectra and QNM frequencies.

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