A homogeneous model of spinfoam cosmology

Rennert, Julian and Sloan, David (2013) A homogeneous model of spinfoam cosmology. Classical and Quantum Gravity, 30 (23). ISSN 0264-9381

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We examine spinfoam cosmology by use of a simple graph adapted to homogeneous cosmological models. We calculate dynamics in the isotropic limit, and provide the framework for the anisotropic case. We calculate the transition amplitude between holomorphic coherent states on a single node graph and find that the resultant dynamics is peaked on solutions which have no support on the zero volume state, indicating that big bang type singularities are avoided within such models. Communicated by P Singh

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Journal Article
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Classical and Quantum Gravity
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11 Feb 2019 10:25
Last Modified:
22 Nov 2022 07:02