LQG propagator from the new spin foams

Eugenio Bianchi; Elena Magliaro; Claudio Perini

doi:10.1016/j.nuclphysb.2009.07.016

LQG propagator from the new spin foams

Eugenio Bianchi, Elena Magliaro, Claudio Perini

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98 Scopus citations

Abstract

We compute metric correlations in loop quantum gravity with the dynamics defined by the new spin foam models. The analysis is done at the lowest order in a vertex expansion and at the leading order in a large spin expansion. The result is compared to the graviton propagator of perturbative quantum gravity.

Original language	English (US)
Pages (from-to)	245-269
Number of pages	25
Journal	Nuclear Physics B
Volume	822
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nuclphysb.2009.07.016
State	Published - Nov 21 2009

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysb.2009.07.016

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title = "LQG propagator from the new spin foams",

abstract = "We compute metric correlations in loop quantum gravity with the dynamics defined by the new spin foam models. The analysis is done at the lowest order in a vertex expansion and at the leading order in a large spin expansion. The result is compared to the graviton propagator of perturbative quantum gravity.",

author = "Eugenio Bianchi and Elena Magliaro and Claudio Perini",

note = "Funding Information: We thank Carlo Rovelli for many useful discussions. We also thank Emanuele Alesci, John W. Barrett, Florian Conrady, Richard J. Dowdall, Winston J. Fairbairn, Henrique Gomes, Frank Hellmann, Leonardo Modesto, Roberto Pereira and Alejandro Satz for comments and suggestions. E.B. gratefully acknowledges support from Fondazione A. Della Riccia.",

year = "2009",

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doi = "10.1016/j.nuclphysb.2009.07.016",

language = "English (US)",

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pages = "245--269",

journal = "Nuclear Physics B",

issn = "0550-3213",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - LQG propagator from the new spin foams

AU - Bianchi, Eugenio

AU - Magliaro, Elena

AU - Perini, Claudio

N1 - Funding Information: We thank Carlo Rovelli for many useful discussions. We also thank Emanuele Alesci, John W. Barrett, Florian Conrady, Richard J. Dowdall, Winston J. Fairbairn, Henrique Gomes, Frank Hellmann, Leonardo Modesto, Roberto Pereira and Alejandro Satz for comments and suggestions. E.B. gratefully acknowledges support from Fondazione A. Della Riccia.

PY - 2009/11/21

Y1 - 2009/11/21

N2 - We compute metric correlations in loop quantum gravity with the dynamics defined by the new spin foam models. The analysis is done at the lowest order in a vertex expansion and at the leading order in a large spin expansion. The result is compared to the graviton propagator of perturbative quantum gravity.

AB - We compute metric correlations in loop quantum gravity with the dynamics defined by the new spin foam models. The analysis is done at the lowest order in a vertex expansion and at the leading order in a large spin expansion. The result is compared to the graviton propagator of perturbative quantum gravity.

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U2 - 10.1016/j.nuclphysb.2009.07.016

DO - 10.1016/j.nuclphysb.2009.07.016

M3 - Article

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SN - 0550-3213

VL - 822

SP - 245

EP - 269

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 1-2

ER -

LQG propagator from the new spin foams

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