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Loop quantum gravity and quanta of space: a primer

Carlo Rovelli·Peush Upadhya
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Abstract

We present a straightforward and self-contained introduction to the basics of the loop approach to quantum gravity, and a derivation of what is arguably its key result, namely the spectral analysis of the area operator. We also discuss the arguments supporting the physical prediction following this result: that physical geometrical quantities are quantized in a non-trivial, computable, fashion. These results are not new; we present them here in a simple form that avoids the many non-essential complications of the first derivations.

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Carlo Rovelli, Peush Upadhya. 1998-06-19. Loop quantum gravity and quanta of space: a primer. https://arxiv.org/abs/gr-qc/9806079

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