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Transcending Big Bang in Loop Quantum Cosmology: Recent Advances · Around

2009

Transcending Big Bang in Loop Quantum Cosmology: Recent Advances

Singh, Parampreet

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We discuss the way non-perturbative quantization of cosmological spacetimes in loop quantum cosmology provides insights on the physics of Planck scale and the resolution of big bang singularity.

In recent years, rigorous examination of mathematical and physical aspects of the quantum theory has led to a consistent quantization which is consistent and physically viable and some early ideas have been ruled out.
The latter include so called `physical effects' originating from modifications to inverse scale factors in the flat models.
The singularity resolution is understood to originate from the non-local nature of curvature in the quantum theory and the underlying polymer representation.

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Then

See for example, M. Sami, P. Singh, S. Tsujikawa, Phys. Rev. D 74
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2007
Later among the works it cites.
For ongoing works on ansitropies and Gowdy spacetimes see, D-W. Chiou, Phys. Rev. D 75
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A. Corichi, J. Phys.: Conf. Ser. 140
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A. Corichi and P. Singh, Phys. Rev. D 78
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A. Corichi and P. Singh, Phys. Rev. Lett. 100

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A. Ashtekar, T. Pawlowski, P. Singh, (In preparation)

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