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Group field theory condensate cosmology: An appetizer

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arxiv 1904.00598 v2 pith:IZKWNARX submitted 2019-04-01 gr-qc astro-ph.COhep-th

A. G. A. Pithis , M. Sakellariadou This is my paper · ORCID
classification gr-qcastro-ph.COhep-th
keywords approachcondensatecosmologyappetizerfieldgrouptheoryaccelerated
verification ladder T0 review T1 audit T2 compute T3 formal
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This contribution is an appetizer to the relatively young and fast evolving approach to quantum cosmology based on group field theory condensate states. We summarize the main assumptions and pillars of this approach which has revealed new perspectives on the long-standing question of how to recover the continuum from discrete geometric building blocks. Among others, we give a snapshot of recent work on isotropic cosmological solutions exhibiting an accelerated expansion, a bounce where anisotropies are shown to be under control and inhomogeneities with an approximately scale-invariant power spectrum. Finally, we point to open issues in the condensate cosmology approach.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A state sum for four-dimensional Lorentzian quantum geometry in terms of edge vectors

    gr-qc 2025-01 conditional novelty 6.0 of 10

    A new state sum model for 4D Lorentzian quantum gravity is constructed from quantum edge vectors and related to the Barrett-Crane spin foam model.

  2. Gravitational Wave Propagation in a Geometric Condensate in Starobinsky Cosmology

    gr-qc 2025-01 conditional novelty 5.0 of 10

    Gravitational waves propagating through an oscillatory scalar condensate of metric origin acquire a modified, Whittaker-function profile and a non-standard dispersion relation, carrying an imprint of the alpha R squar...

  3. Hilbert space formalisms for group field theory

    gr-qc 2024-12 accept novelty 3.0 of 10

    A structured review of the three main Hilbert space formalisms for group field theory, with emphasis on their assumptions and conceptual connections.

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