期刊
PHYSICS OF THE DARK UNIVERSE
卷 25, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.dark.2019.100325
关键词
Quantum cosmology; Wheeler-DeWitt equation; Bose-Einstein condensate
资金
- FAPES
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. (C) 2019 Published by Elsevier B.V.
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