Numerical Techniques in Loop Quantum Cosmology

Details Numerical Techniques in Loop Quantum Cosmology Numerical Techniques in Loop Quantum Cosmology

2011-10-04

arxiv.org/abs/1110.0646v2

SIGMA 8 (2012), 001, 26 pages

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.3842/SIGMA.2012.001

In this article, we review the use of numerical techniques to obtain solutions for the quantum Hamiltonian constraint in loop quantum cosmology (LQC). First, we summarize the basic features of LQC, and describe features of the constraint equations to solve - generically, these are difference (rather than differential) equations. Important issues such as differing quantization methods, stability of the solutions, the semi-classical limit, and the relevance of lattice refinement in the difference equations are discussed. Finally, the cosmological models already considered in the literature are listed, along with typical features in these models and open issues.

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