Unstable Anisotropic Loop Quantum Cosmology

Details Unstable Anisotropic Loop Quantum Cosmology Unstable Anisotropic Loop Quantum Cosmology

2009-07-23

arxiv.org/abs/0907.4057v1

Phys.Rev.D80:063521,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 2 figures

Scientific paper

10.1103/PhysRevD.80.063521

We study stability conditions of the full Hamiltonian constraint equation describing the quantum dynamics of the diagonal Bianchi I model in the context of LQC. Our analysis has shown robust evidence of an instability in the explicit implementation of the difference equation, implying important consequences for the correspondence between the full LQG theory and LQC. As a result, one may question the choice of the quantisation approach, the model of lattice refinement, and/or the role of the ambiguity parameters; all these should in principle be dictated by the full LQG theory.

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