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Singularity avoidance in Bianchi I quantum cosmology

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arxiv 1903.04391 v3 pith:6PVRWCA6 submitted 2019-03-11 gr-qc hep-th

Claus Kiefer , Nick Kwidzinski , Dennis Piontek This is my paper · ORCID
classification gr-qchep-th
keywords modelsavoidancebianchiquantumsingularityanisotropicavoidedclass
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We extend recent discussions of singularity avoidance in quantum gravity from isotropic to anisotropic cosmological models. The investigation is done in the framework of quantum geometrodynamics (Wheeler-DeWitt equation). We formulate criteria of singularity avoidance for general Bianchi class A models and give explicit and detailed results for Bianchi I models with and without matter. We find that the classical singularities can generally be avoided in these models.

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Cited by 2 Pith papers

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

  1. Unitary quantum matter-bounce in a universe with a positive cosmological constant

    gr-qc 2025-05 conditional novelty 6.0 of 10

    Quantizing a dust-filled universe with positive cosmological constant yields a unitary wave packet whose expectation value bounces, avoiding the classical Big Bang singularity.

  2. Exact path integrals on half-line in quantum cosmology with a fluid clock and aspects of operator ordering ambiguity

    gr-qc 2025-01 conditional novelty 6.0 of 10

    For minisuperspace dimension D>2 with a fluid clock, adding a specific curvature term makes physical predictions independent of a large class of operator orderings; in D=1 the ambiguity remains.

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