Abstract

CORICHI, A.. Comments on area spectra in loop quantum gravity. Rev. mex. fis. [online]. 2004, vol.50, n.6, pp.549-552. ISSN 0035-001X.

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

Keywords : Quantum gravity; Area spectrum; spin networks.

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