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| HAL : hal-00694447, version 1 |
| arXiv : 1110.3020 |
| Fiche détaillée |  Récupérer au format |
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| Learning about Quantum Gravity with a Couple of Nodes |
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| Enrique F. BorjaIñaki Garay1F. Vidotto2, 3 |
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| (25/03/2012) |
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| Loop Quantum Gravity provides a natural truncation of the infinite degrees of freedom of gravity, obtained by studying the theory on a given finite graph. We review this procedure and we present the construction of the canonical theory on a simple graph, formed by only two nodes. We review the U(N) framework, which provides a powerful tool for the canonical study of this model, and a formulation of the system based on spinors. We consider also the covariant theory, which permits to derive the model from a more complex formulation, paying special attention to the cosmological interpretation of the theory. |
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| 1 : | Institute for Theoretical Physics III |
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| 2 : | CPT - Centre de Physique Théorique |
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| 3 : | LPSC - Laboratoire de Physique Subatomique et de Cosmologie |
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| Domaine | : | Physique/Relativité Générale et Cosmologie Quantique |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/1110.3020 |
| hal-00694447, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00694447 | |
| oai:hal.archives-ouvertes.fr:hal-00694447 | |
| Contributeur : Francesca Vidotto | |
| Soumis le : Vendredi 4 Mai 2012, 12:01:37 | |
| Dernière modification le : Mercredi 20 Mars 2013, 08:41:58 | |
