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Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2015

How many quanta are there in a quantum spacetime?

Résumé

Following earlier insights by Livine and Terno, we develop a technique for describing quantum states of the gravitational field in terms of coarse grained spin networks. We show that the number of nodes and links and the values of the spin depend on the observables chosen for the description of the state. Hence the question in the title of this paper is ill posed, unless further information about what is been measured is given.
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hal-01255352 , version 1 (02-02-2024)

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Seramika Ariwahjoedi, Jusak Sali Kosasih, Carlo Rovelli, Freddy P. Zen. How many quanta are there in a quantum spacetime?. 2024. ⟨hal-01255352⟩
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