Tensorial Structure of the LQG graviton propagator

dc.creatorAlesci, Emanuele
dc.date2008-02-08
dc.date.accessioned2026-07-07T11:55:55Z
dc.date.available2026-07-07T11:55:55Z
dc.descriptionWe review the construction of the tensorial structure of the graviton propagator in the context of loop quantum gravity and spinfoam formalism. The main result of this analysis is that applying the same strategy used to compute the diagonal terms, the Barrett-Crane vertex is unable to yield the correct propagator in the long distance limit. The problem is in the intertwiner-independence of the Barrett-Crane vertex. We also review the asymptotic behavior of an alternative vertex that is able to give the correct propagator.
dc.description4 pages,; to appear in the proceedings of the II Stueckelberg Workshop, Int.J.Mod.Phys.A
dc.identifierhttps://arxiv.org/abs/0802.1201
dc.identifierhttp://arxiv.org/abs/0802.1201
dc.identifierInt.J.Mod.Phys.A23:1209-1213,2008
dc.identifierdoi:10.1142/S0217751X0804007X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205407
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleTensorial Structure of the LQG graviton propagator
dc.typetext

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