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2008

Quantum Particle Production at Sudden Singularities

Barrow, John D., Batista, Antonio B., Fabris, Julio C. et al.

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We investigate the effects of quantum particle production on a classical sudden singularity occurring at fine time in a Friedmann universe.

We use an exact solution to describe an initially radiation-dominated universe that evolves into a sudden singularity at finite time.
We calculate the density of created particles exactly and find that it is generally much smaller than the classical background density and pressure which produce the sudden singularity.
We conclude that, in the example studied, the quantum particle production does not lead to the avoidance or modification to the sudden future singularity.

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M.P. Dabrowski, T. Denkiewicz and M.A. Hendry, arXiv:gr-qc/0704.1383

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A.B. Batista, J.C. Fabris and S. Houndjo, Gravitation & Cosmology 14

2008

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