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arXiv · 1610.06416

Primordial Universe with radiation and Bose-Einstein condensate

F. G. Alvarenga·L. G. Ferreira Filho·R. Fracalossi·R. C. Freitas·S. V. B. Gonçalves·G. A. Monerat·G. Oliveira-Neto·E. V. Corrêa Silva
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Abstract

In this work we derive a scenario {in which} the early universe consists of {radiation fluid} and Bose-Einstein condensate. The possibility of gravitational self-interaction due to an attractive Bose-Einstein condensate is analyzed. The classical behavior of the scale factor of the universe is determined by a parameter associated with the Bose-Einstein fluid with bouncing or Big Crunch solutions. After we proceed to compute the finite-norm wave packet solutions to the Wheeler-DeWitt equation. The behavior of the scale factor is studied by applying the many-worlds interpretation of quantum mechanics. The quantum cosmological model is free from the singularities.

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F. G. Alvarenga, L. G. Ferreira Filho, R. Fracalossi, R. C. Freitas, S. V. B. Gonçalves, G. A. Monerat, G. Oliveira-Neto, E. V. Corrêa Silva. 2016-10-20. Primordial Universe with radiation and Bose-Einstein condensate. https://doi.org/10.1016/j.dark.2019.100325

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