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Bouncing cosmologies from quantum gravity condensates

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arxiv 1602.08271 v3 pith:UNWO6LEB submitted 2016-02-26 gr-qc hep-th

Daniele Oriti , Lorenzo Sindoni , Edward Wilson-Ewing This is my paper · ORCID
classification gr-qchep-th
keywords fieldgravitygroupquantumtheoryactionapproximationarise
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We show how the large-scale cosmological dynamics can be obtained from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the semi-classical limit for some choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities.

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Cited by 6 Pith papers

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

  1. Relational Observables in Group Field Theory

    gr-qc 2024-12 conditional novelty 7.0 of 10

    POVM-based conditioning on scalar-field quantum reference frames defines relational observables in group field theory that match prior number and volume results on coherent states.

  2. Collective excitations in quantum gravity condensates

    gr-qc 2026-05 unverdicted novelty 6.0 of 10

    Collective excitations analogous to phonons are derived in quantum gravity condensates within a group field theory model, yielding leading beyond-mean-field corrections to emergent Friedmann dynamics.

  3. Multiple-Order Tensor Field Theory: Enumeration of unitary invariant observables

    math-ph 2025-05 conditional novelty 6.0 of 10

    A Burnside-based enumeration formula, Theorem 4, counts unitary invariant tensor contractions built from fields of multiple orders, recovers known fixed-order counts as a special case, and generates new integer sequences.

  4. Junction Conditions, Radial Stability, Thermodynamics, Optical Geometry and Appearance of Polymer-Quintessence Thin-Shell Wormholes

    gr-qc 2026-07 conditional novelty 5.0 of 10

    Keeping the nonareal polymer angular sector in a polymer-quintessence thin-shell wormhole adds a momentum-flux term that reshapes stability, thermodynamics, and cross-throat image branches.

  5. Addendum to "Relational Hamiltonian for group field theory"

    gr-qc 2019-08 accept novelty 5.0 of 10

    A relational Hamiltonian is built for group field theory actions with derivative-dependent local kinetic terms, and the earlier effective Friedmann dynamics are shown to remain unchanged.

  6. Polymer Black Hole Surrounded by Quintessence

    gr-qc 2025-07 conditional novelty 3.0 of 10

    A polymer black hole with quintessence yields a shadow that can match Sgr A* for many combinations of free parameters while cooling and dimming the black hole.

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