Eugenio Bianchi, Elena Magliaro, Claudio Perini
Abstract
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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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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.
Key concepts: Spin foam, Propagator, Graviton, Loop quantum gravity, Quantum gravity, Spin network, Group field theory, Physics