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Anisotropic loop quantum cosmology with self-dual variables

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arxiv 1512.03684 v2 pith:3MKDSMUD submitted 2015-12-11 gr-qc

classification gr-qc
keywords actioncaseconnectionconstraintfieldhamiltonianloopoperator
verification ladder T0 review T1 audit T2 compute T3 formal
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A loop quantization of the diagonal class A Bianchi models starting from the complex-valued self-dual connection variables is presented in this paper. The basic operators in the quantum theory correspond to areas and generalized holonomies of the Ashtekar connection and the reality conditions are implemented via the choice of the inner product on the kinematical Hilbert space. The action of the Hamiltonian constraint operator is given explicitly for the case when the matter content is a massless scalar field (in which case the scalar field can be used as a relational clock), and it is shown that the big-bang and big-crunch singularities are resolved in the sense that singular and non-singular states decouple under the action of the Hamiltonian constraint operator.

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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. On the dynamics of single-vertex states in quantum-reduced loop gravity

    gr-qc 2024-12 conditional novelty 6.0 of 10

    The Hamiltonian of single-vertex states in quantum-reduced loop gravity formally matches Bianchi I loop quantum cosmology, and an analogy suggests adding a non-trivial Lorentzian curvature term to the cosmology Hamiltonian.

  2. Quantum-reduced loop gravity: New perspectives on the kinematics and dynamics

    gr-qc 2024-12 conditional novelty 5.0 of 10

    The paper reformulates quantum-reduced loop gravity with a master constraint operator and finds that its single-node Hamiltonian matches the Bianchi I loop quantum cosmology Hamiltonian.

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